21611525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2293}}^1$

素因数の和:2345

約数の個数: 24

約数和(自身を含む): 29867880

約数和(自身を除く): 8256355

約数列:

[1, 5, 13, 25, 29, 65, 145, 325, 377, 725, 1885, 2293, 9425, 11465, 29809, 57325, 66497, 149045, 332485, 745225, 864461, 1662425, 4322305, 21611525]

約数ペア:

[(1, 21611525), (5, 4322305), (13, 1662425), (25, 864461), (29, 745225), (65, 332485), (145, 149045), (325, 66497), (377, 57325), (725, 29809), (1885, 11465), (2293, 9425)]