20145879

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{739}}^1$

素因数の和:991

約数の個数: 24

約数和(自身を含む): 31515120

約数和(自身を除く): 11369241

約数列:

[1, 3, 9, 13, 39, 117, 233, 699, 739, 2097, 2217, 3029, 6651, 9087, 9607, 27261, 28821, 86463, 172187, 516561, 1549683, 2238431, 6715293, 20145879]

約数ペア:

[(1, 20145879), (3, 6715293), (9, 2238431), (13, 1549683), (39, 516561), (117, 172187), (233, 86463), (699, 28821), (739, 27261), (2097, 9607), (2217, 9087), (3029, 6651)]