128366289

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{68903}}^1$

素因数の和:68938

約数の個数: 20

約数和(自身を含む): 200097216

約数和(自身を除く): 71730927

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 68903, 206709, 620127, 1584769, 1860381, 4754307, 5581143, 14262921, 42788763, 128366289]

約数ペア:

[(1, 128366289), (3, 42788763), (9, 14262921), (23, 5581143), (27, 4754307), (69, 1860381), (81, 1584769), (207, 620127), (621, 206709), (1863, 68903)]