20406919

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{7103}}^1$

素因数の和:7146

約数の個数: 12

約数和(自身を含む): 23400576

約数和(自身を除く): 2993657

約数列:

[1, 13, 17, 169, 221, 2873, 7103, 92339, 120751, 1200407, 1569763, 20406919]

約数ペア:

[(1, 20406919), (13, 1569763), (17, 1200407), (169, 120751), (221, 92339), (2873, 7103)]