20681885

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{5737}}^1$

素因数の和:5852

約数の個数: 16

約数和(自身を含む): 28644096

約数和(自身を除く): 7962211

約数列:

[1, 5, 7, 35, 103, 515, 721, 3605, 5737, 28685, 40159, 200795, 590911, 2954555, 4136377, 20681885]

約数ペア:

[(1, 20681885), (5, 4136377), (7, 2954555), (35, 590911), (103, 200795), (515, 40159), (721, 28685), (3605, 5737)]