20553221

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{93001}}^1$

素因数の和:93031

約数の個数: 8

約数和(自身を含む): 23436504

約数和(自身を除く): 2883283

約数列:

[1, 13, 17, 221, 93001, 1209013, 1581017, 20553221]

約数ペア:

[(1, 20553221), (13, 1581017), (17, 1209013), (221, 93001)]