21246325

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:373

約数の個数: 24

約数和(自身を含む): 27442688

約数和(自身を除く): 6196363

約数列:

[1, 5, 25, 37, 103, 185, 223, 515, 925, 1115, 2575, 3811, 5575, 8251, 19055, 22969, 41255, 95275, 114845, 206275, 574225, 849853, 4249265, 21246325]

約数ペア:

[(1, 21246325), (5, 4249265), (25, 849853), (37, 574225), (103, 206275), (185, 114845), (223, 95275), (515, 41255), (925, 22969), (1115, 19055), (2575, 8251), (3811, 5575)]