21415725

素因数分解:

$3^3\times 5^2\times {\mathrm{31727}}^1$

素因数の和:31746

約数の個数: 24

約数和(自身を含む): 39342720

約数和(自身を除く): 17926995

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 31727, 95181, 158635, 285543, 475905, 793175, 856629, 1427715, 2379525, 4283145, 7138575, 21415725]

約数ペア:

[(1, 21415725), (3, 7138575), (5, 4283145), (9, 2379525), (15, 1427715), (25, 856629), (27, 793175), (45, 475905), (75, 285543), (135, 158635), (225, 95181), (675, 31727)]