12897963

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4793}}^1$

素因数の和:4835

約数の個数: 24

約数和(自身を含む): 20940192

約数和(自身を除く): 8042229

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 4793, 14379, 43137, 62309, 110239, 186927, 330717, 560781, 992151, 1433107, 4299321, 12897963]

約数ペア:

[(1, 12897963), (3, 4299321), (9, 1433107), (13, 992151), (23, 560781), (39, 330717), (69, 186927), (117, 110239), (207, 62309), (299, 43137), (897, 14379), (2691, 4793)]