56991357

素因数分解:

$3^4\times {\mathrm{821}}^1\times {\mathrm{857}}^1$

素因数の和:1690

約数の個数: 20

約数和(自身を含む): 85338396

約数和(自身を除く): 28347039

約数列:

[1, 3, 9, 27, 81, 821, 857, 2463, 2571, 7389, 7713, 22167, 23139, 66501, 69417, 703597, 2110791, 6332373, 18997119, 56991357]

約数ペア:

[(1, 56991357), (3, 18997119), (9, 6332373), (27, 2110791), (81, 703597), (821, 69417), (857, 66501), (2463, 23139), (2571, 22167), (7389, 7713)]