18934565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{7873}}^1$

素因数の和:7928

約数の個数: 16

約数和(自身を含む): 25133808

約数和(自身を除く): 6199243

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 7873, 39365, 102349, 291301, 511745, 1456505, 3786913, 18934565]

約数ペア:

[(1, 18934565), (5, 3786913), (13, 1456505), (37, 511745), (65, 291301), (185, 102349), (481, 39365), (2405, 7873)]