21543743

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1373}}^1$

素因数の和:1474

約数の個数: 16

約数和(自身を含む): 24929856

約数和(自身を除く): 3386113

約数列:

[1, 13, 17, 71, 221, 923, 1207, 1373, 15691, 17849, 23341, 97483, 303433, 1267279, 1657211, 21543743]

約数ペア:

[(1, 21543743), (13, 1657211), (17, 1267279), (71, 303433), (221, 97483), (923, 23341), (1207, 17849), (1373, 15691)]