6981471

素因数分解:

$3^4\times 7^2\times {\mathrm{1759}}^1$

素因数の和:1785

約数の個数: 30

約数和(自身を含む): 12138720

約数和(自身を除く): 5157249

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 1759, 3969, 5277, 12313, 15831, 36939, 47493, 86191, 110817, 142479, 258573, 332451, 775719, 997353, 2327157, 6981471]

約数ペア:

[(1, 6981471), (3, 2327157), (7, 997353), (9, 775719), (21, 332451), (27, 258573), (49, 142479), (63, 110817), (81, 86191), (147, 47493), (189, 36939), (441, 15831), (567, 12313), (1323, 5277), (1759, 3969)]