20908870

素因数分解:

$2^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{19541}}^1$

素因数の和:19655

約数の個数: 16

約数和(自身を含む): 37989648

約数和(自身を除く): 17080778

約数列:

[1, 2, 5, 10, 107, 214, 535, 1070, 19541, 39082, 97705, 195410, 2090887, 4181774, 10454435, 20908870]

約数ペア:

[(1, 20908870), (2, 10454435), (5, 4181774), (10, 2090887), (107, 195410), (214, 97705), (535, 39082), (1070, 19541)]