18908725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2371}}^1$

素因数の和:2421

約数の個数: 24

約数和(自身を含む): 26471520

約数和(自身を除く): 7562795

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 1595, 2371, 7975, 11855, 26081, 59275, 68759, 130405, 343795, 652025, 756349, 1718975, 3781745, 18908725]

約数ペア:

[(1, 18908725), (5, 3781745), (11, 1718975), (25, 756349), (29, 652025), (55, 343795), (145, 130405), (275, 68759), (319, 59275), (725, 26081), (1595, 11855), (2371, 7975)]