18722842

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{1669}}^1$

素因数の和:1821

約数の個数: 16

約数和(自身を含む): 28857600

約数和(自身を除く): 10134758

約数列:

[1, 2, 71, 79, 142, 158, 1669, 3338, 5609, 11218, 118499, 131851, 236998, 263702, 9361421, 18722842]

約数ペア:

[(1, 18722842), (2, 9361421), (71, 263702), (79, 236998), (142, 131851), (158, 118499), (1669, 11218), (3338, 5609)]