20808533997

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{43623761}}^1$

素因数の和:43623820

約数の個数: 12

約数和(自身を含む): 30623880924

約数和(自身を除く): 9815346927

約数列:

[1, 3, 9, 53, 159, 477, 43623761, 130871283, 392613849, 2312059333, 6936177999, 20808533997]

約数ペア:

[(1, 20808533997), (3, 6936177999), (9, 2312059333), (53, 392613849), (159, 130871283), (477, 43623761)]