20508845

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{5689}}^1$

素因数の和:5804

約数の個数: 16

約数和(自身を含む): 28404480

約数和(自身を除く): 7895635

約数列:

[1, 5, 7, 35, 103, 515, 721, 3605, 5689, 28445, 39823, 199115, 585967, 2929835, 4101769, 20508845]

約数ペア:

[(1, 20508845), (5, 4101769), (7, 2929835), (35, 585967), (103, 199115), (515, 39823), (721, 28445), (3605, 5689)]