128220489

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{38609}}^1$

素因数の和:38662

約数の個数: 20

約数和(自身を含む): 196216020

約数和(自身を除く): 67995531

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 38609, 115827, 347481, 1042443, 1582969, 3127329, 4748907, 14246721, 42740163, 128220489]

約数ペア:

[(1, 128220489), (3, 42740163), (9, 14246721), (27, 4748907), (41, 3127329), (81, 1582969), (123, 1042443), (369, 347481), (1107, 115827), (3321, 38609)]