21690929

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1609}}^1$

素因数の和:1700

約数の個数: 16

約数和(自身を含む): 25154640

約数和(自身を除く): 3463711

約数列:

[1, 13, 17, 61, 221, 793, 1037, 1609, 13481, 20917, 27353, 98149, 355589, 1275937, 1668533, 21690929]

約数ペア:

[(1, 21690929), (13, 1668533), (17, 1275937), (61, 355589), (221, 98149), (793, 27353), (1037, 20917), (1609, 13481)]