A049226 - cp's OEIS frontend

A049226 Composite numbers n such that the sum of divisors of n, sigma(n), divided by the number of divisors, d(n) and sigma(n) minus n are both rational squares.

n	a(n)
1	119
2	527
3	1196
4	3591
5	5831
6	6887
7	12319
8	15407
9	18575
10	33271
11	47959
12	51119
13	56853
14	63119
15	65151
16	116399
17	176911
18	328151
19	373319
20	437999
21	438311
22	520319
23	568519
24	724687
25	734111
26	851927
27	957551
28	1059191
29	1140071
30	1437599
31	1760831
32	1813511
33	2320919
34	3354479
35	3383420

[119, 527, 1196, 3591, 5831, 6887, 12319, 15407, 18575, 33271, 47959, 51119, 56853, 63119, 65151, 116399, 176911, 328151, 373319, 437999, 438311, 520319, 568519, 724687, 734111, 851927, 957551, 1059191, 1140071, 1437599, 1760831, 1813511, 2320919, 3354479, 3383420]

cp's OEIS Frontend

A049226 Composite numbers n such that the sum of divisors of n, sigma(n), divided by the number of divisors, d(n) and sigma(n) minus n are both rational squares.

Table of values

List of values