20259681

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1439}}^1$

素因数の和:1493

約数の個数: 24

約数和(自身を含む): 30723840

約数和(自身を除く): 10464159

約数列:

[1, 3, 13, 19, 39, 57, 247, 361, 741, 1083, 1439, 4317, 4693, 14079, 18707, 27341, 56121, 82023, 355433, 519479, 1066299, 1558437, 6753227, 20259681]

約数ペア:

[(1, 20259681), (3, 6753227), (13, 1558437), (19, 1066299), (39, 519479), (57, 355433), (247, 82023), (361, 56121), (741, 27341), (1083, 18707), (1439, 14079), (4317, 4693)]