20521310

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{1499}}^1$

素因数の和:1580

約数の個数: 24

約数和(自身を含む): 37989000

約数和(自身を除く): 17467690

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 1369, 1499, 2738, 2998, 6845, 7495, 13690, 14990, 55463, 110926, 277315, 554630, 2052131, 4104262, 10260655, 20521310]

約数ペア:

[(1, 20521310), (2, 10260655), (5, 4104262), (10, 2052131), (37, 554630), (74, 277315), (185, 110926), (370, 55463), (1369, 14990), (1499, 13690), (2738, 7495), (2998, 6845)]