397712889

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{56873}}^1$

素因数の和:56926

約数の個数: 32

約数和(自身を含む): 691587840

約数和(自身を除く): 293874951

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 2331, 6993, 56873, 170619, 398111, 511857, 1194333, 1535571, 2104301, 3582999, 6312903, 10748997, 14730107, 18938709, 44190321, 56816127, 132570963, 397712889]

約数ペア:

[(1, 397712889), (3, 132570963), (7, 56816127), (9, 44190321), (21, 18938709), (27, 14730107), (37, 10748997), (63, 6312903), (111, 3582999), (189, 2104301), (259, 1535571), (333, 1194333), (777, 511857), (999, 398111), (2331, 170619), (6993, 56873)]