21681212

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{26701}}^1$

素因数の和:26741

約数の個数: 24

約数和(自身を含む): 44859360

約数和(自身を除く): 23178148

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 26701, 53402, 106804, 186907, 373814, 747628, 774329, 1548658, 3097316, 5420303, 10840606, 21681212]

約数ペア:

[(1, 21681212), (2, 10840606), (4, 5420303), (7, 3097316), (14, 1548658), (28, 774329), (29, 747628), (58, 373814), (116, 186907), (203, 106804), (406, 53402), (812, 26701)]