19728501

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{2099}}^1$

素因数の和:2356

約数の個数: 16

約数和(自身を含む): 28459200

約数和(自身を除く): 8730699

約数列:

[1, 3, 13, 39, 241, 723, 2099, 3133, 6297, 9399, 27287, 81861, 505859, 1517577, 6576167, 19728501]

約数ペア:

[(1, 19728501), (3, 6576167), (13, 1517577), (39, 505859), (241, 81861), (723, 27287), (2099, 9399), (3133, 6297)]