21066838

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:472

約数の個数: 32

約数和(自身を含む): 35622720

約数和(自身を除く): 14555882

約数列:

[1, 2, 13, 26, 37, 61, 74, 122, 359, 481, 718, 793, 962, 1586, 2257, 4514, 4667, 9334, 13283, 21899, 26566, 29341, 43798, 58682, 172679, 284687, 345358, 569374, 810263, 1620526, 10533419, 21066838]

約数ペア:

[(1, 21066838), (2, 10533419), (13, 1620526), (26, 810263), (37, 569374), (61, 345358), (74, 284687), (122, 172679), (359, 58682), (481, 43798), (718, 29341), (793, 26566), (962, 21899), (1586, 13283), (2257, 9334), (4514, 4667)]