21551575

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1013}}^1$

素因数の和:1083

約数の個数: 24

約数和(自身を含む): 28667808

約数和(自身を除く): 7116233

約数列:

[1, 5, 23, 25, 37, 115, 185, 575, 851, 925, 1013, 4255, 5065, 21275, 23299, 25325, 37481, 116495, 187405, 582475, 862063, 937025, 4310315, 21551575]

約数ペア:

[(1, 21551575), (5, 4310315), (23, 937025), (25, 862063), (37, 582475), (115, 187405), (185, 116495), (575, 37481), (851, 25325), (925, 23299), (1013, 21275), (4255, 5065)]