128408769

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{49369}}^1$

素因数の和:49409

約数の個数: 18

約数和(自身を含む): 197035670

約数和(自身を除く): 68626901

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 49369, 148107, 444321, 839273, 2517819, 7553457, 14267641, 42802923, 128408769]

約数ペア:

[(1, 128408769), (3, 42802923), (9, 14267641), (17, 7553457), (51, 2517819), (153, 839273), (289, 444321), (867, 148107), (2601, 49369)]