40391507

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{827}}^1$

素因数の和:887

約数の個数: 18

約数和(自身を含む): 46517868

約数和(自身を除く): 6126361

約数列:

[1, 13, 17, 169, 221, 289, 827, 2873, 3757, 10751, 14059, 48841, 139763, 182767, 239003, 2375971, 3107039, 40391507]

約数ペア:

[(1, 40391507), (13, 3107039), (17, 2375971), (169, 239003), (221, 182767), (289, 139763), (827, 48841), (2873, 14059), (3757, 10751)]