420039999

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{97843}}^1$

素因数の和:97908

約数の個数: 20

約数和(自身を含む): 639312696

約数和(自身を除く): 219272697

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 97843, 293529, 880587, 2641761, 5185679, 7925283, 15557037, 46671111, 140013333, 420039999]

約数ペア:

[(1, 420039999), (3, 140013333), (9, 46671111), (27, 15557037), (53, 7925283), (81, 5185679), (159, 2641761), (477, 880587), (1431, 293529), (4293, 97843)]