27881113

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{457}}^1$

素因数の和:521

約数の個数: 18

約数和(自身を含む): 31933134

約数和(自身を除く): 4052021

約数列:

[1, 13, 19, 169, 247, 361, 457, 3211, 4693, 5941, 8683, 61009, 77233, 112879, 164977, 1467427, 2144701, 27881113]

約数ペア:

[(1, 27881113), (13, 2144701), (19, 1467427), (169, 164977), (247, 112879), (361, 77233), (457, 61009), (3211, 8683), (4693, 5941)]