A335708 - cp's OEIS frontend

A335708 a(n) is the number of divisors of the n-th Niven number.

n	a(n)
1	1
2	2
3	2
4	3
5	2
6	4
7	2
8	4
9	3
10	4
11	6
12	6
13	6
14	4
15	8
16	4
17	8
18	9
19	8
20	8
21	6
22	10
23	6
24	8
25	12
26	6
27	8
28	12
29	10
30	5
31	12
32	12
33	9
34	8
35	12
36	8
37	4
38	10
39	8
40	6
41	16
42	12
43	12
44	4
45	8
46	12
47	15
48	12
49	8
50	6
51	12
52	10
53	6
54	18
55	8
56	14
57	8
58	12
59	12
60	4
61	12
62	6
63	4
64	16
65	16
66	12
67	8
68	12
69	9
70	12
71	8
72	12
73	20
74	6
75	4
76	18
77	6
78	16

[1, 2, 2, 3, 2, 4, 2, 4, 3, 4, 6, 6, 6, 4, 8, 4, 8, 9, 8, 8, 6, 10, 6, 8, 12, 6, 8, 12, 10, 5, 12, 12, 9, 8, 12, 8, 4, 10, 8, 6, 16, 12, 12, 4, 8, 12, 15, 12, 8, 6, 12, 10, 6, 18, 8, 14, 8, 12, 12, 4, 12, 6, 4, 16, 16, 12, 8, 12, 9, 12, 8, 12, 20, 6, 4, 18, 6, 16]

cp's OEIS Frontend

A335708 a(n) is the number of divisors of the n-th Niven number.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	3
5	2
6	4
7	2
8	4
9	3
10	4
11	6
12	6
13	6
14	4
15	8
16	4
17	8
18	9
19	8
20	8
21	6
22	10
23	6
24	8
25	12
26	6
27	8
28	12
29	10
30	5
31	12
32	12
33	9
34	8
35	12
36	8
37	4
38	10
39	8
40	6
41	16
42	12
43	12
44	4
45	8
46	12
47	15
48	12
49	8
50	6
51	12
52	10
53	6
54	18
55	8
56	14
57	8
58	12
59	12
60	4
61	12
62	6
63	4
64	16
65	16
66	12
67	8
68	12
69	9
70	12
71	8
72	12
73	20
74	6
75	4
76	18
77	6
78	16

n	a(n)
1	1
2	2
3	2
4	3
5	2
6	4
7	2
8	4
9	3
10	4
11	6
12	6
13	6
14	4
15	8
16	4
17	8
18	9
19	8
20	8
21	6
22	10
23	6
24	8
25	12
26	6
27	8
28	12
29	10
30	5
31	12
32	12
33	9
34	8
35	12
36	8
37	4
38	10
39	8
40	6
41	16
42	12
43	12
44	4
45	8
46	12
47	15
48	12
49	8
50	6
51	12
52	10
53	6
54	18
55	8
56	14
57	8
58	12
59	12
60	4
61	12
62	6
63	4
64	16
65	16
66	12
67	8
68	12
69	9
70	12
71	8
72	12
73	20
74	6
75	4
76	18
77	6
78	16

n	a(n)
1	1
2	2
3	2
4	3
5	2
6	4
7	2
8	4
9	3
10	4
11	6
12	6
13	6
14	4
15	8
16	4
17	8
18	9
19	8
20	8
21	6
22	10
23	6
24	8
25	12
26	6
27	8
28	12
29	10
30	5
31	12
32	12
33	9
34	8
35	12
36	8
37	4
38	10
39	8
40	6
41	16
42	12
43	12
44	4
45	8
46	12
47	15
48	12
49	8
50	6
51	12
52	10
53	6
54	18
55	8
56	14
57	8
58	12
59	12
60	4
61	12
62	6
63	4
64	16
65	16
66	12
67	8
68	12
69	9
70	12
71	8
72	12
73	20
74	6
75	4
76	18
77	6
78	16