21713970239

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{7557943}}^1$

素因数の和:7557986

約数の個数: 12

約数和(自身を含む): 24895867536

約数和(自身を除く): 3181897297

約数列:

[1, 13, 17, 169, 221, 2873, 7557943, 98253259, 128485031, 1277292367, 1670305403, 21713970239]

約数ペア:

[(1, 21713970239), (13, 1670305403), (17, 1277292367), (169, 128485031), (221, 98253259), (2873, 7557943)]