21108507

素因数分解:

$3^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{2269}}^1$

素因数の和:2722

約数の個数: 16

約数和(自身を含む): 32252160

約数和(自身を除く): 11143653

約数列:

[1, 3, 7, 21, 443, 1329, 2269, 3101, 6807, 9303, 15883, 47649, 1005167, 3015501, 7036169, 21108507]

約数ペア:

[(1, 21108507), (3, 7036169), (7, 3015501), (21, 1005167), (443, 47649), (1329, 15883), (2269, 9303), (3101, 6807)]