A091954 - cp's OEIS frontend

A091954 Number of odd proper divisors of n. That is, the number of odd divisors of n that are less than n.

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	2
7	1
8	1
9	2
10	2
11	1
12	2
13	1
14	2
15	3
16	1
17	1
18	3
19	1
20	2
21	3
22	2
23	1
24	2
25	2
26	2
27	3
28	2
29	1
30	4
31	1
32	1
33	3
34	2
35	3
36	3
37	1
38	2
39	3
40	2
41	1
42	4
43	1
44	2
45	5
46	2
47	1
48	2
49	2
50	3
51	3
52	2
53	1
54	4
55	3
56	2
57	3
58	2
59	1
60	4
61	1
62	2
63	5
64	1
65	3
66	4
67	1
68	2
69	3
70	4
71	1
72	3
73	1
74	2
75	5
76	2
77	3
78	4
79	1
80	2
81	4
82	2
83	1
84	4
85	3
86	2
87	3
88	2
89	1
90	6
91	3
92	2
93	3
94	2
95	3
96	2
97	1
98	3
99	5
100	3
101	1
102	4
103	1
104	2
105	7
106	2
107	1
108	4
109	1
110	4

[0, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 2, 1, 2, 3, 1, 1, 3, 1, 2, 3, 2, 1, 2, 2, 2, 3, 2, 1, 4, 1, 1, 3, 2, 3, 3, 1, 2, 3, 2, 1, 4, 1, 2, 5, 2, 1, 2, 2, 3, 3, 2, 1, 4, 3, 2, 3, 2, 1, 4, 1, 2, 5, 1, 3, 4, 1, 2, 3, 4, 1, 3, 1, 2, 5, 2, 3, 4, 1, 2, 4, 2, 1, 4, 3, 2, 3, 2, 1, 6, 3, 2, 3, 2, 3, 2, 1, 3, 5, 3, 1, 4, 1, 2, 7, 2, 1, 4, 1, 4]

cp's OEIS Frontend

A091954 Number of odd proper divisors of n. That is, the number of odd divisors of n that are less than n.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	2
7	1
8	1
9	2
10	2
11	1
12	2
13	1
14	2
15	3
16	1
17	1
18	3
19	1
20	2
21	3
22	2
23	1
24	2
25	2
26	2
27	3
28	2
29	1
30	4
31	1
32	1
33	3
34	2
35	3
36	3
37	1
38	2
39	3
40	2
41	1
42	4
43	1
44	2
45	5
46	2
47	1
48	2
49	2
50	3
51	3
52	2
53	1
54	4
55	3
56	2
57	3
58	2
59	1
60	4
61	1
62	2
63	5
64	1
65	3
66	4
67	1
68	2
69	3
70	4
71	1
72	3
73	1
74	2
75	5
76	2
77	3
78	4
79	1
80	2
81	4
82	2
83	1
84	4
85	3
86	2
87	3
88	2
89	1
90	6
91	3
92	2
93	3
94	2
95	3
96	2
97	1
98	3
99	5
100	3
101	1
102	4
103	1
104	2
105	7
106	2
107	1
108	4
109	1
110	4

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	2
7	1
8	1
9	2
10	2
11	1
12	2
13	1
14	2
15	3
16	1
17	1
18	3
19	1
20	2
21	3
22	2
23	1
24	2
25	2
26	2
27	3
28	2
29	1
30	4
31	1
32	1
33	3
34	2
35	3
36	3
37	1
38	2
39	3
40	2
41	1
42	4
43	1
44	2
45	5
46	2
47	1
48	2
49	2
50	3
51	3
52	2
53	1
54	4
55	3
56	2
57	3
58	2
59	1
60	4
61	1
62	2
63	5
64	1
65	3
66	4
67	1
68	2
69	3
70	4
71	1
72	3
73	1
74	2
75	5
76	2
77	3
78	4
79	1
80	2
81	4
82	2
83	1
84	4
85	3
86	2
87	3
88	2
89	1
90	6
91	3
92	2
93	3
94	2
95	3
96	2
97	1
98	3
99	5
100	3
101	1
102	4
103	1
104	2
105	7
106	2
107	1
108	4
109	1
110	4

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	2
7	1
8	1
9	2
10	2
11	1
12	2
13	1
14	2
15	3
16	1
17	1
18	3
19	1
20	2
21	3
22	2
23	1
24	2
25	2
26	2
27	3
28	2
29	1
30	4
31	1
32	1
33	3
34	2
35	3
36	3
37	1
38	2
39	3
40	2
41	1
42	4
43	1
44	2
45	5
46	2
47	1
48	2
49	2
50	3
51	3
52	2
53	1
54	4
55	3
56	2
57	3
58	2
59	1
60	4
61	1
62	2
63	5
64	1
65	3
66	4
67	1
68	2
69	3
70	4
71	1
72	3
73	1
74	2
75	5
76	2
77	3
78	4
79	1
80	2
81	4
82	2
83	1
84	4
85	3
86	2
87	3
88	2
89	1
90	6
91	3
92	2
93	3
94	2
95	3
96	2
97	1
98	3
99	5
100	3
101	1
102	4
103	1
104	2
105	7
106	2
107	1
108	4
109	1
110	4