20217512241

素因数分解:

$3^2\times {\mathrm{59}}^2\times {\mathrm{645329}}^1$

素因数の和:645453

約数の個数: 18

約数和(自身を含む): 29706475890

約数和(自身を除く): 9488963649

約数列:

[1, 3, 9, 59, 177, 531, 3481, 10443, 31329, 645329, 1935987, 5807961, 38074411, 114223233, 342669699, 2246390249, 6739170747, 20217512241]

約数ペア:

[(1, 20217512241), (3, 6739170747), (9, 2246390249), (59, 342669699), (177, 114223233), (531, 38074411), (3481, 5807961), (10443, 1935987), (31329, 645329)]