7840287

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3191}}^1$

素因数の和:3220

約数の個数: 32

約数和(自身を含む): 14300160

約数和(自身を除く): 6459873

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 3191, 9573, 22337, 28719, 41483, 67011, 86157, 124449, 201033, 290381, 373347, 603099, 871143, 1120041, 2613429, 7840287]

約数ペア:

[(1, 7840287), (3, 2613429), (7, 1120041), (9, 871143), (13, 603099), (21, 373347), (27, 290381), (39, 201033), (63, 124449), (91, 86157), (117, 67011), (189, 41483), (273, 28719), (351, 22337), (819, 9573), (2457, 3191)]