19889441

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{823}}^1$

素因数の和:873

約数の個数: 16

約数和(自身を含む): 23533440

約数和(自身を除く): 3643999

約数列:

[1, 11, 13, 143, 169, 823, 1859, 2197, 9053, 10699, 24167, 117689, 139087, 1529957, 1808131, 19889441]

約数ペア:

[(1, 19889441), (11, 1808131), (13, 1529957), (143, 139087), (169, 117689), (823, 24167), (1859, 10699), (2197, 9053)]