389636541

素因数分解:

$3^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{19267}}^1$

素因数の和:19390

約数の個数: 32

約数和(自身を含む): 665902080

約数和(自身を除く): 276265539

約数列:

[1, 3, 7, 9, 21, 27, 63, 107, 189, 321, 749, 963, 2247, 2889, 6741, 19267, 20223, 57801, 134869, 173403, 404607, 520209, 1213821, 2061569, 3641463, 6184707, 14430983, 18554121, 43292949, 55662363, 129878847, 389636541]

約数ペア:

[(1, 389636541), (3, 129878847), (7, 55662363), (9, 43292949), (21, 18554121), (27, 14430983), (63, 6184707), (107, 3641463), (189, 2061569), (321, 1213821), (749, 520209), (963, 404607), (2247, 173403), (2889, 134869), (6741, 57801), (19267, 20223)]