128882481

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{10979}}^1$

素因数の和:11045

約数の個数: 32

約数和(自身を含む): 216437760

約数和(自身を除く): 87555279

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 3913, 10979, 11739, 32937, 76853, 142727, 230559, 428181, 472097, 999089, 1416291, 2997267, 3304679, 6137261, 9914037, 18411783, 42960827, 128882481]

約数ペア:

[(1, 128882481), (3, 42960827), (7, 18411783), (13, 9914037), (21, 6137261), (39, 3304679), (43, 2997267), (91, 1416291), (129, 999089), (273, 472097), (301, 428181), (559, 230559), (903, 142727), (1677, 76853), (3913, 32937), (10979, 11739)]