21000545425

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{20488337}}^1$

素因数の和:20488388

約数の個数: 12

約数和(自身を含む): 26675816076

約数和(自身を除く): 5675270651

約数列:

[1, 5, 25, 41, 205, 1025, 20488337, 102441685, 512208425, 840021817, 4200109085, 21000545425]

約数ペア:

[(1, 21000545425), (5, 4200109085), (25, 840021817), (41, 512208425), (205, 102441685), (1025, 20488337)]