19812087

素因数分解:

$3^3\times {\mathrm{139}}^1\times {\mathrm{5279}}^1$

素因数の和:5427

約数の個数: 16

約数和(自身を含む): 29568000

約数和(自身を除く): 9755913

約数列:

[1, 3, 9, 27, 139, 417, 1251, 3753, 5279, 15837, 47511, 142533, 733781, 2201343, 6604029, 19812087]

約数ペア:

[(1, 19812087), (3, 6604029), (9, 2201343), (27, 733781), (139, 142533), (417, 47511), (1251, 15837), (3753, 5279)]