12687842

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{449}}^1$

素因数の和:721

約数の個数: 16

約数和(自身を含む): 19440000

約数和(自身を除く): 6752158

約数列:

[1, 2, 71, 142, 199, 398, 449, 898, 14129, 28258, 31879, 63758, 89351, 178702, 6343921, 12687842]

約数ペア:

[(1, 12687842), (2, 6343921), (71, 178702), (142, 89351), (199, 63758), (398, 31879), (449, 28258), (898, 14129)]