A308056 - cp's OEIS frontend

A308056 a(1) = 1, a(n) is the sum of the divisors d of n such that d and n are exponentially coprime.

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

[1, 2, 3, 2, 5, 6, 7, 6, 3, 10, 11, 6, 13, 14, 15, 10, 17, 6, 19, 10, 21, 22, 23, 18, 5, 26, 12, 14, 29, 30, 31, 30, 33, 34, 35, 6, 37, 38, 39, 30, 41, 42, 43, 22, 15, 46, 47, 30, 7, 10, 51, 26, 53, 24, 55, 42, 57, 58, 59, 30, 61, 62, 21, 34, 65, 66, 67, 34, 69]

cp's OEIS Frontend

A308056 a(1) = 1, a(n) is the sum of the divisors d of n such that d and n are exponentially coprime.

Table of values

List of values

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

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

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