21204856

素因数分解:

$2^3\times {\mathrm{1201}}^1\times {\mathrm{2207}}^1$

素因数の和:3414

約数の個数: 16

約数和(自身を含む): 39810240

約数和(自身を除く): 18605384

約数列:

[1, 2, 4, 8, 1201, 2207, 2402, 4414, 4804, 8828, 9608, 17656, 2650607, 5301214, 10602428, 21204856]

約数ペア:

[(1, 21204856), (2, 10602428), (4, 5301214), (8, 2650607), (1201, 17656), (2207, 9608), (2402, 8828), (4414, 4804)]