12997881

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1949}}^1$

素因数の和:1990

約数の個数: 32

約数和(自身を含む): 21840000

約数和(自身を除く): 8842119

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 117, 171, 247, 351, 513, 741, 1949, 2223, 5847, 6669, 17541, 25337, 37031, 52623, 76011, 111093, 228033, 333279, 481403, 684099, 999837, 1444209, 4332627, 12997881]

約数ペア:

[(1, 12997881), (3, 4332627), (9, 1444209), (13, 999837), (19, 684099), (27, 481403), (39, 333279), (57, 228033), (117, 111093), (171, 76011), (247, 52623), (351, 37031), (513, 25337), (741, 17541), (1949, 6669), (2223, 5847)]