81112577

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1091}}^1$

素因数の和:1173

約数の個数: 32

約数和(自身を含む): 107627520

約数和(自身を除く): 26514943

約数列:

[1, 7, 13, 19, 43, 91, 133, 247, 301, 559, 817, 1091, 1729, 3913, 5719, 7637, 10621, 14183, 20729, 46913, 74347, 99281, 145103, 269477, 328391, 609869, 891347, 1886339, 4269083, 6239429, 11587511, 81112577]

約数ペア:

[(1, 81112577), (7, 11587511), (13, 6239429), (19, 4269083), (43, 1886339), (91, 891347), (133, 609869), (247, 328391), (301, 269477), (559, 145103), (817, 99281), (1091, 74347), (1729, 46913), (3913, 20729), (5719, 14183), (7637, 10621)]