19994481

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2341}}^1$

素因数の和:2433

約数の個数: 24

約数和(自身を含む): 31542056

約数和(自身を除く): 11547575

約数列:

[1, 3, 9, 13, 39, 73, 117, 219, 657, 949, 2341, 2847, 7023, 8541, 21069, 30433, 91299, 170893, 273897, 512679, 1538037, 2221609, 6664827, 19994481]

約数ペア:

[(1, 19994481), (3, 6664827), (9, 2221609), (13, 1538037), (39, 512679), (73, 273897), (117, 170893), (219, 91299), (657, 30433), (949, 21069), (2341, 8541), (2847, 7023)]