21869921521

素因数分解:

$7^2\times {\mathrm{727}}^1\times {\mathrm{757}}^1\times {\mathrm{811}}^1$

素因数の和:2309

約数の個数: 24

約数和(自身を含む): 25540622016

約数和(自身を除く): 3670700495

約数列:

[1, 7, 49, 727, 757, 811, 5089, 5299, 5677, 35623, 37093, 39739, 550339, 589597, 613927, 3852373, 4127179, 4297489, 26966611, 28890253, 30082423, 446324929, 3124274503, 21869921521]

約数ペア:

[(1, 21869921521), (7, 3124274503), (49, 446324929), (727, 30082423), (757, 28890253), (811, 26966611), (5089, 4297489), (5299, 4127179), (5677, 3852373), (35623, 613927), (37093, 589597), (39739, 550339)]