12686247

素因数分解:

$3^3\times 7^2\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:289

約数の個数: 48

約数和(自身を含む): 22471680

約数和(自身を除く): 9785433

約数列:

[1, 3, 7, 9, 21, 27, 43, 49, 63, 129, 147, 189, 223, 301, 387, 441, 669, 903, 1161, 1323, 1561, 2007, 2107, 2709, 4683, 6021, 6321, 8127, 9589, 10927, 14049, 18963, 28767, 32781, 42147, 56889, 67123, 86301, 98343, 201369, 258903, 295029, 469861, 604107, 1409583, 1812321, 4228749, 12686247]

約数ペア:

[(1, 12686247), (3, 4228749), (7, 1812321), (9, 1409583), (21, 604107), (27, 469861), (43, 295029), (49, 258903), (63, 201369), (129, 98343), (147, 86301), (189, 67123), (223, 56889), (301, 42147), (387, 32781), (441, 28767), (669, 18963), (903, 14049), (1161, 10927), (1323, 9589), (1561, 8127), (2007, 6321), (2107, 6021), (2709, 4683)]