19718842

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{68947}}^1$

素因数の和:68973

約数の個数: 16

約数和(自身を含む): 34749792

約数和(自身を除く): 15030950

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 68947, 137894, 758417, 896311, 1516834, 1792622, 9859421, 19718842]

約数ペア:

[(1, 19718842), (2, 9859421), (11, 1792622), (13, 1516834), (22, 896311), (26, 758417), (143, 137894), (286, 68947)]