81123939

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{36493}}^1$

素因数の和:36531

約数の個数: 24

約数和(自身を含む): 132838160

約数和(自身を除く): 51714221

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 36493, 109479, 328437, 474409, 693367, 1423227, 2080101, 4269681, 6240303, 9013771, 27041313, 81123939]

約数ペア:

[(1, 81123939), (3, 27041313), (9, 9013771), (13, 6240303), (19, 4269681), (39, 2080101), (57, 1423227), (117, 693367), (171, 474409), (247, 328437), (741, 109479), (2223, 36493)]