15721425

素因数分解:

$3^3\times 5^2\times {\mathrm{23291}}^1$

素因数の和:23310

約数の個数: 24

約数和(自身を含む): 28882080

約数和(自身を除く): 13160655

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 23291, 69873, 116455, 209619, 349365, 582275, 628857, 1048095, 1746825, 3144285, 5240475, 15721425]

約数ペア:

[(1, 15721425), (3, 5240475), (5, 3144285), (9, 1746825), (15, 1048095), (25, 628857), (27, 582275), (45, 349365), (75, 209619), (135, 116455), (225, 69873), (675, 23291)]