A369687 - cp's OEIS frontend

A369687 a(n) = Sum_{p|n, p prime} p^phi(n/p).

n	a(n)
1	0
2	2
3	3
4	2
5	5
6	7
7	7
8	4
9	9
10	21
11	11
12	13
13	13
14	71
15	106
16	16
17	17
18	73
19	19
20	41
21	778
22	1035
23	23
24	97
25	625
26	4109
27	729
28	113
29	29
30	362
31	31
32	256
33	59170
34	65553
35	18026
36	145
37	37
38	262163
39	531610
40	881
41	41
42	4874
43	43
44	1145
45	22186
46	4194327
47	47
48	6817
49	117649
50	1049201
51	43047010
52	4265
53	53
54	262873
55	9780266
56	6497

[0, 2, 3, 2, 5, 7, 7, 4, 9, 21, 11, 13, 13, 71, 106, 16, 17, 73, 19, 41, 778, 1035, 23, 97, 625, 4109, 729, 113, 29, 362, 31, 256, 59170, 65553, 18026, 145, 37, 262163, 531610, 881, 41, 4874, 43, 1145, 22186, 4194327, 47, 6817, 117649, 1049201, 43047010, 4265, 53, 262873, 9780266, 6497]

cp's OEIS Frontend

A369687 a(n) = Sum_{p|n, p prime} p^phi(n/p).

Table of values

List of values