21696961

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2137}}^1$

素因数の和:2232

約数の個数: 16

約数和(自身を含む): 25861248

約数和(自身を除く): 4164287

約数列:

[1, 11, 13, 71, 143, 781, 923, 2137, 10153, 23507, 27781, 151727, 305591, 1668997, 1972451, 21696961]

約数ペア:

[(1, 21696961), (11, 1972451), (13, 1668997), (71, 305591), (143, 151727), (781, 27781), (923, 23507), (2137, 10153)]