127640247

素因数分解:

$3^1\times 7^3\times {\mathrm{163}}^1\times {\mathrm{761}}^1$

素因数の和:948

約数の個数: 32

約数和(自身を含む): 199948800

約数和(自身を除く): 72308553

約数列:

[1, 3, 7, 21, 49, 147, 163, 343, 489, 761, 1029, 1141, 2283, 3423, 5327, 7987, 15981, 23961, 37289, 55909, 111867, 124043, 167727, 261023, 372129, 783069, 868301, 2604903, 6078107, 18234321, 42546749, 127640247]

約数ペア:

[(1, 127640247), (3, 42546749), (7, 18234321), (21, 6078107), (49, 2604903), (147, 868301), (163, 783069), (343, 372129), (489, 261023), (761, 167727), (1029, 124043), (1141, 111867), (2283, 55909), (3423, 37289), (5327, 23961), (7987, 15981)]