21230750

素因数分解:

$2^1\times 5^3\times {\mathrm{163}}^1\times {\mathrm{521}}^1$

素因数の和:701

約数の個数: 32

約数和(自身を含む): 40064544

約数和(自身を除く): 18833794

約数列:

[1, 2, 5, 10, 25, 50, 125, 163, 250, 326, 521, 815, 1042, 1630, 2605, 4075, 5210, 8150, 13025, 20375, 26050, 40750, 65125, 84923, 130250, 169846, 424615, 849230, 2123075, 4246150, 10615375, 21230750]

約数ペア:

[(1, 21230750), (2, 10615375), (5, 4246150), (10, 2123075), (25, 849230), (50, 424615), (125, 169846), (163, 130250), (250, 84923), (326, 65125), (521, 40750), (815, 26050), (1042, 20375), (1630, 13025), (2605, 8150), (4075, 5210)]