12981782

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{8311}}^1$

素因数の和:8395

約数の個数: 16

約数和(自身を含む): 21544704

約数和(自身を除く): 8562922

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 8311, 16622, 91421, 182842, 590081, 1180162, 6490891, 12981782]

約数ペア:

[(1, 12981782), (2, 6490891), (11, 1180162), (22, 590081), (71, 182842), (142, 91421), (781, 16622), (1562, 8311)]