18876842

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{1087}}^1$

素因数の和:1565

約数の個数: 16

約数和(自身を含む): 29898240

約数和(自身を除く): 11021398

約数列:

[1, 2, 19, 38, 457, 914, 1087, 2174, 8683, 17366, 20653, 41306, 496759, 993518, 9438421, 18876842]

約数ペア:

[(1, 18876842), (2, 9438421), (19, 993518), (38, 496759), (457, 41306), (914, 20653), (1087, 17366), (2174, 8683)]