257579667

素因数分解:

$3^2\times {\mathrm{131}}^1\times {\mathrm{197}}^1\times {\mathrm{1109}}^1$

素因数の和:1443

約数の個数: 24

約数和(自身を含む): 377142480

約数和(自身を除く): 119562813

約数列:

[1, 3, 9, 131, 197, 393, 591, 1109, 1179, 1773, 3327, 9981, 25807, 77421, 145279, 218473, 232263, 435837, 655419, 1307511, 1966257, 28619963, 85859889, 257579667]

約数ペア:

[(1, 257579667), (3, 85859889), (9, 28619963), (131, 1966257), (197, 1307511), (393, 655419), (591, 435837), (1109, 232263), (1179, 218473), (1773, 145279), (3327, 77421), (9981, 25807)]