20648210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{187711}}^1$

素因数の和:187729

約数の個数: 16

約数和(自身を含む): 40545792

約数和(自身を除く): 19897582

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 187711, 375422, 938555, 1877110, 2064821, 4129642, 10324105, 20648210]

約数ペア:

[(1, 20648210), (2, 10324105), (5, 4129642), (10, 2064821), (11, 1877110), (22, 938555), (55, 375422), (110, 187711)]