81184311

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 132874560

約数和(自身を除く): 51690249

約数列:

[1, 3, 9, 13, 29, 39, 71, 87, 117, 213, 261, 337, 377, 639, 923, 1011, 1131, 2059, 2769, 3033, 3393, 4381, 6177, 8307, 9773, 13143, 18531, 23927, 26767, 29319, 39429, 71781, 80301, 87957, 127049, 215343, 240903, 311051, 381147, 693883, 933153, 1143441, 2081649, 2799459, 6244947, 9020479, 27061437, 81184311]

約数ペア:

[(1, 81184311), (3, 27061437), (9, 9020479), (13, 6244947), (29, 2799459), (39, 2081649), (71, 1143441), (87, 933153), (117, 693883), (213, 381147), (261, 311051), (337, 240903), (377, 215343), (639, 127049), (923, 87957), (1011, 80301), (1131, 71781), (2059, 39429), (2769, 29319), (3033, 26767), (3393, 23927), (4381, 18531), (6177, 13143), (8307, 9773)]