18390827

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{28871}}^1$

素因数の和:28898

約数の個数: 12

約数和(自身を含む): 23039856

約数和(自身を除く): 4649029

約数列:

[1, 7, 13, 49, 91, 637, 28871, 202097, 375323, 1414679, 2627261, 18390827]

約数ペア:

[(1, 18390827), (7, 2627261), (13, 1414679), (49, 375323), (91, 202097), (637, 28871)]