12688907

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:311

約数の個数: 24

約数和(自身を含む): 16240896

約数和(自身を除く): 3551989

約数列:

[1, 7, 11, 71, 77, 121, 211, 497, 781, 847, 1477, 2321, 5467, 8591, 14981, 16247, 25531, 60137, 104867, 164791, 178717, 1153537, 1812701, 12688907]

約数ペア:

[(1, 12688907), (7, 1812701), (11, 1153537), (71, 178717), (77, 164791), (121, 104867), (211, 60137), (497, 25531), (781, 16247), (847, 14981), (1477, 8591), (2321, 5467)]