21870441

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{65677}}^1$

素因数の和:65720

約数の個数: 12

約数和(自身を含む): 32444932

約数和(自身を除く): 10574491

約数列:

[1, 3, 9, 37, 111, 333, 65677, 197031, 591093, 2430049, 7290147, 21870441]

約数ペア:

[(1, 21870441), (3, 7290147), (9, 2430049), (37, 591093), (111, 197031), (333, 65677)]