21900868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{2579}}^1$

素因数の和:2787

約数の個数: 24

約数和(自身を含む): 42043680

約数和(自身を除く): 20142812

約数列:

[1, 2, 4, 11, 22, 44, 193, 386, 772, 2123, 2579, 4246, 5158, 8492, 10316, 28369, 56738, 113476, 497747, 995494, 1990988, 5475217, 10950434, 21900868]

約数ペア:

[(1, 21900868), (2, 10950434), (4, 5475217), (11, 1990988), (22, 995494), (44, 497747), (193, 113476), (386, 56738), (772, 28369), (2123, 10316), (2579, 8492), (4246, 5158)]