19921850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{30649}}^1$

素因数の和:30674

約数の個数: 24

約数和(自身を含む): 39906300

約数和(自身を除く): 19984450

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 30649, 61298, 153245, 306490, 398437, 766225, 796874, 1532450, 1992185, 3984370, 9960925, 19921850]

約数ペア:

[(1, 19921850), (2, 9960925), (5, 3984370), (10, 1992185), (13, 1532450), (25, 796874), (26, 766225), (50, 398437), (65, 306490), (130, 153245), (325, 61298), (650, 30649)]