20664710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{187861}}^1$

素因数の和:187879

約数の個数: 16

約数和(自身を含む): 40578192

約数和(自身を除く): 19913482

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 187861, 375722, 939305, 1878610, 2066471, 4132942, 10332355, 20664710]

約数ペア:

[(1, 20664710), (2, 10332355), (5, 4132942), (10, 2066471), (11, 1878610), (22, 939305), (55, 375722), (110, 187861)]