847647423

素因数分解:

$3^5\times 7^2\times {\mathrm{257}}^1\times {\mathrm{277}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 1488129552

約数和(自身を除く): 640482129

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 257, 277, 441, 567, 771, 831, 1323, 1701, 1799, 1939, 2313, 2493, 3969, 5397, 5817, 6939, 7479, 11907, 12593, 13573, 16191, 17451, 20817, 22437, 37779, 40719, 48573, 52353, 62451, 67311, 71189, 113337, 122157, 145719, 157059, 213567, 340011, 366471, 437157, 471177, 498323, 640701, 1020033, 1099413, 1494969, 1922103, 3060099, 3298239, 3488261, 4484907, 5766309, 10464783, 13454721, 17298927, 31394349, 40364163, 94183047, 121092489, 282549141, 847647423]

約数ペア:

[(1, 847647423), (3, 282549141), (7, 121092489), (9, 94183047), (21, 40364163), (27, 31394349), (49, 17298927), (63, 13454721), (81, 10464783), (147, 5766309), (189, 4484907), (243, 3488261), (257, 3298239), (277, 3060099), (441, 1922103), (567, 1494969), (771, 1099413), (831, 1020033), (1323, 640701), (1701, 498323), (1799, 471177), (1939, 437157), (2313, 366471), (2493, 340011), (3969, 213567), (5397, 157059), (5817, 145719), (6939, 122157), (7479, 113337), (11907, 71189), (12593, 67311), (13573, 62451), (16191, 52353), (17451, 48573), (20817, 40719), (22437, 37779)]