12821757

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 19813248

約数和(自身を除く): 6991491

約数列:

[1, 3, 13, 17, 39, 51, 83, 221, 233, 249, 663, 699, 1079, 1411, 3029, 3237, 3961, 4233, 9087, 11883, 18343, 19339, 51493, 55029, 58017, 154479, 251407, 328763, 754221, 986289, 4273919, 12821757]

約数ペア:

[(1, 12821757), (3, 4273919), (13, 986289), (17, 754221), (39, 328763), (51, 251407), (83, 154479), (221, 58017), (233, 55029), (249, 51493), (663, 19339), (699, 18343), (1079, 11883), (1411, 9087), (3029, 4233), (3237, 3961)]