A332881 - cp's OEIS frontend

A332881 If n = Product (p_j^k_j) then a(n) = denominator of Product (1 + 1/p_j).

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

[1, 2, 3, 2, 5, 1, 7, 2, 3, 5, 11, 1, 13, 7, 5, 2, 17, 1, 19, 5, 21, 11, 23, 1, 5, 13, 3, 7, 29, 5, 31, 2, 11, 17, 35, 1, 37, 19, 39, 5, 41, 7, 43, 11, 5, 23, 47, 1, 7, 5, 17, 13, 53, 1, 55, 7, 57, 29, 59, 5, 61, 31, 21, 2, 65, 11, 67, 17, 23, 35]

cp's OEIS Frontend

A332881 If n = Product (p_j^k_j) then a(n) = denominator of Product (1 + 1/p_j).

Table of values

List of values

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

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

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