9987939

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4493}}^1$

素因数の和:4531

約数の個数: 24

約数和(自身を含む): 16358160

約数和(自身を除く): 6370221

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 4493, 13479, 40437, 58409, 85367, 175227, 256101, 525681, 768303, 1109771, 3329313, 9987939]

約数ペア:

[(1, 9987939), (3, 3329313), (9, 1109771), (13, 768303), (19, 525681), (39, 256101), (57, 175227), (117, 85367), (171, 58409), (247, 40437), (741, 13479), (2223, 4493)]