669317781

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{285667}}^1$

素因数の和:285752

約数の個数: 16

約数和(自身を含む): 987268608

約数和(自身を除く): 317950827

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 285667, 857001, 3142337, 9427011, 20282357, 60847071, 223105927, 669317781]

約数ペア:

[(1, 669317781), (3, 223105927), (11, 60847071), (33, 20282357), (71, 9427011), (213, 3142337), (781, 857001), (2343, 285667)]