20521775

素因数分解:

$5^2\times {\mathrm{701}}^1\times {\mathrm{1171}}^1$

素因数の和:1882

約数の個数: 12

約数和(自身を含む): 25505064

約数和(自身を除く): 4983289

約数列:

[1, 5, 25, 701, 1171, 3505, 5855, 17525, 29275, 820871, 4104355, 20521775]

約数ペア:

[(1, 20521775), (5, 4104355), (25, 820871), (701, 29275), (1171, 17525), (3505, 5855)]