21250660

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{5563}}^1$

素因数の和:5763

約数の個数: 24

約数和(自身を含む): 44868096

約数和(自身を除く): 23617436

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 5563, 11126, 22252, 27815, 55630, 111260, 1062533, 2125066, 4250132, 5312665, 10625330, 21250660]

約数ペア:

[(1, 21250660), (2, 10625330), (4, 5312665), (5, 4250132), (10, 2125066), (20, 1062533), (191, 111260), (382, 55630), (764, 27815), (955, 22252), (1910, 11126), (3820, 5563)]