21209617

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2089}}^1$

素因数の和:2184

約数の個数: 16

約数和(自身を含む): 25280640

約数和(自身を除く): 4071023

約数列:

[1, 11, 13, 71, 143, 781, 923, 2089, 10153, 22979, 27157, 148319, 298727, 1631509, 1928147, 21209617]

約数ペア:

[(1, 21209617), (11, 1928147), (13, 1631509), (71, 298727), (143, 148319), (781, 27157), (923, 22979), (2089, 10153)]