20457868

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{300851}}^1$

素因数の和:300872

約数の個数: 12

約数和(自身を含む): 37907352

約数和(自身を除く): 17449484

約数列:

[1, 2, 4, 17, 34, 68, 300851, 601702, 1203404, 5114467, 10228934, 20457868]

約数ペア:

[(1, 20457868), (2, 10228934), (4, 5114467), (17, 1203404), (34, 601702), (68, 300851)]