20659804977

素因数分解:

$3^1\times 7^2\times {\mathrm{751}}^1\times {\mathrm{187141}}^1$

素因数の和:187909

約数の個数: 24

約数和(自身を含む): 32086618752

約数和(自身を除く): 11426813775

約数列:

[1, 3, 7, 21, 49, 147, 751, 2253, 5257, 15771, 36799, 110397, 187141, 561423, 1309987, 3929961, 9169909, 27509727, 140542891, 421628673, 983800237, 2951400711, 6886601659, 20659804977]

約数ペア:

[(1, 20659804977), (3, 6886601659), (7, 2951400711), (21, 983800237), (49, 421628673), (147, 140542891), (751, 27509727), (2253, 9169909), (5257, 3929961), (15771, 1309987), (36799, 561423), (110397, 187141)]