21985525

素因数分解:

$5^2\times {\mathrm{751}}^1\times {\mathrm{1171}}^1$

素因数の和:1932

約数の個数: 12

約数和(自身を含む): 27321664

約数和(自身を除く): 5336139

約数列:

[1, 5, 25, 751, 1171, 3755, 5855, 18775, 29275, 879421, 4397105, 21985525]

約数ペア:

[(1, 21985525), (5, 4397105), (25, 879421), (751, 29275), (1171, 18775), (3755, 5855)]