19771642

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{81701}}^1$

素因数の和:81725

約数の個数: 12

約数和(自身を含む): 32599098

約数和(自身を除く): 12827456

約数列:

[1, 2, 11, 22, 121, 242, 81701, 163402, 898711, 1797422, 9885821, 19771642]

約数ペア:

[(1, 19771642), (2, 9885821), (11, 1797422), (22, 898711), (121, 163402), (242, 81701)]