20703895

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{433}}^1$

素因数の和:642

約数の個数: 16

約数和(自身を含む): 25435872

約数和(自身を除く): 4731977

約数列:

[1, 5, 73, 131, 365, 433, 655, 2165, 9563, 31609, 47815, 56723, 158045, 283615, 4140779, 20703895]

約数ペア:

[(1, 20703895), (5, 4140779), (73, 283615), (131, 158045), (365, 56723), (433, 47815), (655, 31609), (2165, 9563)]