2721895

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{409}}^1$

素因数の和:447

約数の個数: 16

約数和(自身を含む): 3601440

約数和(自身を除く): 879545

約数列:

[1, 5, 11, 55, 121, 409, 605, 1331, 2045, 4499, 6655, 22495, 49489, 247445, 544379, 2721895]

約数ペア:

[(1, 2721895), (5, 544379), (11, 247445), (55, 49489), (121, 22495), (409, 6655), (605, 4499), (1331, 2045)]