7854651

素因数分解:

$3^4\times 7^2\times {\mathrm{1979}}^1$

素因数の和:2005

約数の個数: 30

約数和(自身を含む): 13656060

約数和(自身を除く): 5801409

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 1979, 3969, 5937, 13853, 17811, 41559, 53433, 96971, 124677, 160299, 290913, 374031, 872739, 1122093, 2618217, 7854651]

約数ペア:

[(1, 7854651), (3, 2618217), (7, 1122093), (9, 872739), (21, 374031), (27, 290913), (49, 160299), (63, 124677), (81, 96971), (147, 53433), (189, 41559), (441, 17811), (567, 13853), (1323, 5937), (1979, 3969)]