81568347

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{1171}}^1$

素因数の和:1319

約数の個数: 32

約数和(自身を含む): 129613824

約数和(自身を除く): 48045477

約数列:

[1, 3, 7, 21, 31, 93, 107, 217, 321, 651, 749, 1171, 2247, 3317, 3513, 8197, 9951, 23219, 24591, 36301, 69657, 108903, 125297, 254107, 375891, 762321, 877079, 2631237, 3884207, 11652621, 27189449, 81568347]

約数ペア:

[(1, 81568347), (3, 27189449), (7, 11652621), (21, 3884207), (31, 2631237), (93, 877079), (107, 762321), (217, 375891), (321, 254107), (651, 125297), (749, 108903), (1171, 69657), (2247, 36301), (3317, 24591), (3513, 23219), (8197, 9951)]