28518412

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{42187}}^1$

素因数の和:42217

約数の個数: 18

約数和(自身を含む): 54042828

約数和(自身を除く): 25524416

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 42187, 84374, 168748, 548431, 1096862, 2193724, 7129603, 14259206, 28518412]

約数ペア:

[(1, 28518412), (2, 14259206), (4, 7129603), (13, 2193724), (26, 1096862), (52, 548431), (169, 168748), (338, 84374), (676, 42187)]