21161320

素因数分解:

$2^3\times 5^1\times {\mathrm{529033}}^1$

素因数の和:529044

約数の個数: 16

約数和(自身を含む): 47613060

約数和(自身を除く): 26451740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 529033, 1058066, 2116132, 2645165, 4232264, 5290330, 10580660, 21161320]

約数ペア:

[(1, 21161320), (2, 10580660), (4, 5290330), (5, 4232264), (8, 2645165), (10, 2116132), (20, 1058066), (40, 529033)]