640018731

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{1763137}}^1$

素因数の和:1763162

約数の個数: 12

約数和(自身を含む): 937989416

約数和(自身を除く): 297970685

約数列:

[1, 3, 11, 33, 121, 363, 1763137, 5289411, 19394507, 58183521, 213339577, 640018731]

約数ペア:

[(1, 640018731), (3, 213339577), (11, 58183521), (33, 19394507), (121, 5289411), (363, 1763137)]