18878171

素因数分解:

${\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1\times {\mathrm{163}}^1$

素因数の和:386

約数の個数: 16

約数和(自身を含む): 20939520

約数和(自身を除く): 2061349

約数列:

[1, 13, 59, 151, 163, 767, 1963, 2119, 8909, 9617, 24613, 115817, 125021, 319969, 1452167, 18878171]

約数ペア:

[(1, 18878171), (13, 1452167), (59, 319969), (151, 125021), (163, 115817), (767, 24613), (1963, 9617), (2119, 8909)]