257929321

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{5281}}^1$

素因数の和:5341

約数の個数: 18

約数和(自身を含む): 296748042

約数和(自身を除く): 38818721

約数列:

[1, 13, 17, 169, 221, 289, 2873, 3757, 5281, 48841, 68653, 89777, 892489, 1167101, 1526209, 15172313, 19840717, 257929321]

約数ペア:

[(1, 257929321), (13, 19840717), (17, 15172313), (169, 1526209), (221, 1167101), (289, 892489), (2873, 89777), (3757, 68653), (5281, 48841)]