21788481

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{50789}}^1$

素因数の和:50816

約数の個数: 16

約数和(自身を含む): 34130880

約数和(自身を除く): 12342399

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 50789, 152367, 558679, 660257, 1676037, 1980771, 7262827, 21788481]

約数ペア:

[(1, 21788481), (3, 7262827), (11, 1980771), (13, 1676037), (33, 660257), (39, 558679), (143, 152367), (429, 50789)]