51538971

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{21997}}^1$

素因数の和:22082

約数の個数: 16

約数和(自身を含む): 76025088

約数和(自身を除く): 24486117

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 21997, 65991, 241967, 725901, 1561787, 4685361, 17179657, 51538971]

約数ペア:

[(1, 51538971), (3, 17179657), (11, 4685361), (33, 1561787), (71, 725901), (213, 241967), (781, 65991), (2343, 21997)]