64421279

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{1319}}^1$

素因数の和:1379

約数の個数: 18

約数和(自身を含む): 74158920

約数和(自身を除く): 9737641

約数列:

[1, 13, 17, 169, 221, 289, 1319, 2873, 3757, 17147, 22423, 48841, 222911, 291499, 381191, 3789487, 4955483, 64421279]

約数ペア:

[(1, 64421279), (13, 4955483), (17, 3789487), (169, 381191), (221, 291499), (289, 222911), (1319, 48841), (2873, 22423), (3757, 17147)]