21005981

素因数分解:

${\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{3911}}^1$

素因数の和:4083

約数の個数: 8

約数和(自身を含む): 21688128

約数和(自身を除く): 682147

約数列:

[1, 41, 131, 3911, 5371, 160351, 512341, 21005981]

約数ペア:

[(1, 21005981), (41, 512341), (131, 160351), (3911, 5371)]