20855079

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{3037}}^1$

素因数の和:3159

約数の個数: 24

約数和(自身を含む): 34754720

約数和(自身を除く): 13899641

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 3037, 6867, 9111, 21259, 27333, 63777, 191331, 331033, 993099, 2317231, 2979297, 6951693, 20855079]

約数ペア:

[(1, 20855079), (3, 6951693), (7, 2979297), (9, 2317231), (21, 993099), (63, 331033), (109, 191331), (327, 63777), (763, 27333), (981, 21259), (2289, 9111), (3037, 6867)]