21800621

素因数分解:

${\mathrm{47}}^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:304

約数の個数: 12

約数和(自身を含む): 22750560

約数和(自身を除く): 949939

約数列:

[1, 47, 71, 139, 2209, 3337, 6533, 9869, 156839, 307051, 463843, 21800621]

約数ペア:

[(1, 21800621), (47, 463843), (71, 307051), (139, 156839), (2209, 9869), (3337, 6533)]