31681665

素因数分解:

$3^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{709}}^1$

素因数の和:1054

約数の個数: 32

約数和(自身を含む): 56572800

約数和(自身を除く): 24891135

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 331, 709, 993, 1655, 2127, 2979, 3545, 4965, 6381, 8937, 10635, 14895, 19143, 31905, 44685, 95715, 234679, 704037, 1173395, 2112111, 3520185, 6336333, 10560555, 31681665]

約数ペア:

[(1, 31681665), (3, 10560555), (5, 6336333), (9, 3520185), (15, 2112111), (27, 1173395), (45, 704037), (135, 234679), (331, 95715), (709, 44685), (993, 31905), (1655, 19143), (2127, 14895), (2979, 10635), (3545, 8937), (4965, 6381)]