31208247

素因数分解:

$3^5\times 7^2\times {\mathrm{2621}}^1$

素因数の和:2650

約数の個数: 36

約数和(自身を含む): 54401256

約数和(自身を除く): 23193009

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 1323, 1701, 2621, 3969, 7863, 11907, 18347, 23589, 55041, 70767, 128429, 165123, 212301, 385287, 495369, 636903, 1155861, 1486107, 3467583, 4458321, 10402749, 31208247]

約数ペア:

[(1, 31208247), (3, 10402749), (7, 4458321), (9, 3467583), (21, 1486107), (27, 1155861), (49, 636903), (63, 495369), (81, 385287), (147, 212301), (189, 165123), (243, 128429), (441, 70767), (567, 55041), (1323, 23589), (1701, 18347), (2621, 11907), (3969, 7863)]