21349100

素因数分解:

$2^2\times 5^2\times {\mathrm{213491}}^1$

素因数の和:213505

約数の個数: 18

約数和(自身を含む): 46327764

約数和(自身を除く): 24978664

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 213491, 426982, 853964, 1067455, 2134910, 4269820, 5337275, 10674550, 21349100]

約数ペア:

[(1, 21349100), (2, 10674550), (4, 5337275), (5, 4269820), (10, 2134910), (20, 1067455), (25, 853964), (50, 426982), (100, 213491)]