2807721

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1087}}^1$

素因数の和:1141

約数の個数: 24

約数和(自身を含む): 4752384

約数和(自身を除く): 1944663

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 1087, 2583, 3261, 7609, 9783, 22827, 44567, 68481, 133701, 311969, 401103, 935907, 2807721]

約数ペア:

[(1, 2807721), (3, 935907), (7, 401103), (9, 311969), (21, 133701), (41, 68481), (63, 44567), (123, 22827), (287, 9783), (369, 7609), (861, 3261), (1087, 2583)]