20387653

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{997}}^1$

素因数の和:1045

約数の個数: 18

約数和(自身を含む): 24290322

約数和(自身を除く): 3902669

約数列:

[1, 11, 13, 121, 143, 169, 997, 1573, 1859, 10967, 12961, 20449, 120637, 142571, 168493, 1568281, 1853423, 20387653]

約数ペア:

[(1, 20387653), (11, 1853423), (13, 1568281), (121, 168493), (143, 142571), (169, 120637), (997, 20449), (1573, 12961), (1859, 10967)]