21266450

素因数分解:

$2^1\times 5^2\times {\mathrm{425329}}^1$

素因数の和:425341

約数の個数: 12

約数和(自身を含む): 39555690

約数和(自身を除く): 18289240

約数列:

[1, 2, 5, 10, 25, 50, 425329, 850658, 2126645, 4253290, 10633225, 21266450]

約数ペア:

[(1, 21266450), (2, 10633225), (5, 4253290), (10, 2126645), (25, 850658), (50, 425329)]