66721611

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{28477}}^1$

素因数の和:28562

約数の個数: 16

約数和(自身を含む): 98419968

約数和(自身を除く): 31698357

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 28477, 85431, 313247, 939741, 2021867, 6065601, 22240537, 66721611]

約数ペア:

[(1, 66721611), (3, 22240537), (11, 6065601), (33, 2021867), (71, 939741), (213, 313247), (781, 85431), (2343, 28477)]