21252410

素因数分解:

$2^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{4259}}^1$

素因数の和:4765

約数の個数: 16

約数和(自身を含む): 38340000

約数和(自身を除く): 17087590

約数列:

[1, 2, 5, 10, 499, 998, 2495, 4259, 4990, 8518, 21295, 42590, 2125241, 4250482, 10626205, 21252410]

約数ペア:

[(1, 21252410), (2, 10626205), (5, 4250482), (10, 2125241), (499, 42590), (998, 21295), (2495, 8518), (4259, 4990)]