21534992

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:591

約数の個数: 40

約数和(自身を含む): 43955520

約数和(自身を除く): 22420528

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 139, 184, 278, 368, 421, 556, 842, 1112, 1684, 2224, 3197, 3368, 6394, 6736, 9683, 12788, 19366, 25576, 38732, 51152, 58519, 77464, 117038, 154928, 234076, 468152, 936304, 1345937, 2691874, 5383748, 10767496, 21534992]

約数ペア:

[(1, 21534992), (2, 10767496), (4, 5383748), (8, 2691874), (16, 1345937), (23, 936304), (46, 468152), (92, 234076), (139, 154928), (184, 117038), (278, 77464), (368, 58519), (421, 51152), (556, 38732), (842, 25576), (1112, 19366), (1684, 12788), (2224, 9683), (3197, 6736), (3368, 6394)]