A348427 - cp's OEIS frontend

A348427 Composite k for which sigma(k) is divisible by the sum of the arithmetic derivatives of the divisors of k.

n	a(n)
1	10
2	33
3	55
4	145
5	161
6	165
7	253
8	322
9	551
10	649
11	805
12	1079
13	1081
14	1121
15	1441
16	1501
17	1513
18	1633
19	1653
20	1711
21	1771
22	2353
23	2755
24	3237
25	3401
26	3403
27	3713
28	3841
29	4321
30	4669
31	4897
32	5251
33	5313
34	5395
35	5633
36	5671
37	6049
38	6061
39	6319
40	6913
41	7201
42	7801
43	8201
44	8265
45	8471
46	10291

[10, 33, 55, 145, 161, 165, 253, 322, 551, 649, 805, 1079, 1081, 1121, 1441, 1501, 1513, 1633, 1653, 1711, 1771, 2353, 2755, 3237, 3401, 3403, 3713, 3841, 4321, 4669, 4897, 5251, 5313, 5395, 5633, 5671, 6049, 6061, 6319, 6913, 7201, 7801, 8201, 8265, 8471, 10291]

cp's OEIS Frontend

A348427 Composite k for which sigma(k) is divisible by the sum of the arithmetic derivatives of the divisors of k.

Table of values

List of values