20210911777

素因数分解:

$7^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1\times {\mathrm{39869}}^1$

素因数の和:40536

約数の個数: 16

約数和(自身を含む): 23309596800

約数和(自身を除く): 3098685023

約数列:

[1, 7, 139, 521, 973, 3647, 39869, 72419, 279083, 506933, 5541791, 20771749, 38792537, 145402243, 2887273111, 20210911777]

約数ペア:

[(1, 20210911777), (7, 2887273111), (139, 145402243), (521, 38792537), (973, 20771749), (3647, 5541791), (39869, 506933), (72419, 279083)]