257812857

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{4861}}^1$

素因数の和:5021

約数の個数: 24

約数和(自身を含む): 382269888

約数和(自身を除く): 124457031

約数列:

[1, 3, 9, 71, 83, 213, 249, 639, 747, 4861, 5893, 14583, 17679, 43749, 53037, 345131, 403463, 1035393, 1210389, 3106179, 3631167, 28645873, 85937619, 257812857]

約数ペア:

[(1, 257812857), (3, 85937619), (9, 28645873), (71, 3631167), (83, 3106179), (213, 1210389), (249, 1035393), (639, 403463), (747, 345131), (4861, 53037), (5893, 43749), (14583, 17679)]