65807721

素因数分解:

$3^4\times 7^1\times {\mathrm{277}}^1\times {\mathrm{419}}^1$

素因数の和:715

約数の個数: 40

約数和(自身を含む): 113023680

約数和(自身を除く): 47215959

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 277, 419, 567, 831, 1257, 1939, 2493, 2933, 3771, 5817, 7479, 8799, 11313, 17451, 22437, 26397, 33939, 52353, 79191, 116063, 157059, 237573, 348189, 812441, 1044567, 2437323, 3133701, 7311969, 9401103, 21935907, 65807721]

約数ペア:

[(1, 65807721), (3, 21935907), (7, 9401103), (9, 7311969), (21, 3133701), (27, 2437323), (63, 1044567), (81, 812441), (189, 348189), (277, 237573), (419, 157059), (567, 116063), (831, 79191), (1257, 52353), (1939, 33939), (2493, 26397), (2933, 22437), (3771, 17451), (5817, 11313), (7479, 8799)]