21000434725

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{20488229}}^1$

素因数の和:20488280

約数の個数: 12

約数和(自身を含む): 26675675460

約数和(自身を除く): 5675240735

約数列:

[1, 5, 25, 41, 205, 1025, 20488229, 102441145, 512205725, 840017389, 4200086945, 21000434725]

約数ペア:

[(1, 21000434725), (5, 4200086945), (25, 840017389), (41, 512205725), (205, 102441145), (1025, 20488229)]