257017869

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{569}}^1\times {\mathrm{1619}}^1$

素因数の和:2225

約数の個数: 24

約数和(自身を含む): 384134400

約数和(自身を除く): 127116531

約数列:

[1, 3, 9, 31, 93, 279, 569, 1619, 1707, 4857, 5121, 14571, 17639, 50189, 52917, 150567, 158751, 451701, 921211, 2763633, 8290899, 28557541, 85672623, 257017869]

約数ペア:

[(1, 257017869), (3, 85672623), (9, 28557541), (31, 8290899), (93, 2763633), (279, 921211), (569, 451701), (1619, 158751), (1707, 150567), (4857, 52917), (5121, 50189), (14571, 17639)]