247236867

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{132709}}^1$

素因数の和:132744

約数の個数: 20

約数和(自身を含む): 385389840

約数和(自身を除く): 138152973

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 132709, 398127, 1194381, 3052307, 3583143, 9156921, 10749429, 27470763, 82412289, 247236867]

約数ペア:

[(1, 247236867), (3, 82412289), (9, 27470763), (23, 10749429), (27, 9156921), (69, 3583143), (81, 3052307), (207, 1194381), (621, 398127), (1863, 132709)]