21307620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{355127}}^1$

素因数の和:355139

約数の個数: 24

約数和(自身を含む): 59661504

約数和(自身を除く): 38353884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 355127, 710254, 1065381, 1420508, 1775635, 2130762, 3551270, 4261524, 5326905, 7102540, 10653810, 21307620]

約数ペア:

[(1, 21307620), (2, 10653810), (3, 7102540), (4, 5326905), (5, 4261524), (6, 3551270), (10, 2130762), (12, 1775635), (15, 1420508), (20, 1065381), (30, 710254), (60, 355127)]