31581297

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4493}}^1$

素因数の和:4581

約数の個数: 24

約数和(自身を含む): 50476608

約数和(自身を除く): 18895311

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 4493, 7029, 13479, 40437, 49423, 148269, 319003, 444807, 957009, 2871027, 3509033, 10527099, 31581297]

約数ペア:

[(1, 31581297), (3, 10527099), (9, 3509033), (11, 2871027), (33, 957009), (71, 444807), (99, 319003), (213, 148269), (639, 49423), (781, 40437), (2343, 13479), (4493, 7029)]