19812309

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{4583}}^1$

素因数の和:4728

約数の個数: 16

約数和(自身を含む): 29044224

約数和(自身を除く): 9231915

約数列:

[1, 3, 11, 33, 131, 393, 1441, 4323, 4583, 13749, 50413, 151239, 600373, 1801119, 6604103, 19812309]

約数ペア:

[(1, 19812309), (3, 6604103), (11, 1801119), (33, 600373), (131, 151239), (393, 50413), (1441, 13749), (4323, 4583)]