254259

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:128

約数の個数: 20

約数和(自身を含む): 393976

約数和(自身を除く): 139717

約数列:

[1, 3, 9, 27, 43, 73, 81, 129, 219, 387, 657, 1161, 1971, 3139, 3483, 5913, 9417, 28251, 84753, 254259]

約数ペア:

[(1, 254259), (3, 84753), (9, 28251), (27, 9417), (43, 5913), (73, 3483), (81, 3139), (129, 1971), (219, 1161), (387, 657)]