266987619

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{417821}}^1$

素因数の和:417898

約数の個数: 12

約数和(自身を含む): 391081392

約数和(自身を除く): 124093773

約数列:

[1, 3, 9, 71, 213, 639, 417821, 1253463, 3760389, 29665291, 88995873, 266987619]

約数ペア:

[(1, 266987619), (3, 88995873), (9, 29665291), (71, 3760389), (213, 1253463), (639, 417821)]