21246511

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{1039}}^1$

素因数の和:1087

約数の個数: 18

約数和(自身を含む): 25312560

約数和(自身を除く): 4066049

約数列:

[1, 11, 13, 121, 143, 169, 1039, 1573, 1859, 11429, 13507, 20449, 125719, 148577, 175591, 1634347, 1931501, 21246511]

約数ペア:

[(1, 21246511), (11, 1931501), (13, 1634347), (121, 175591), (143, 148577), (169, 125719), (1039, 20449), (1573, 13507), (1859, 11429)]