20678063

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:818

約数の個数: 16

約数和(自身を含む): 24467520

約数和(自身を除く): 3789457

約数列:

[1, 7, 41, 109, 287, 661, 763, 4469, 4627, 27101, 31283, 72049, 189707, 504343, 2954009, 20678063]

約数ペア:

[(1, 20678063), (7, 2954009), (41, 504343), (109, 189707), (287, 72049), (661, 31283), (763, 27101), (4469, 4627)]