2721555

素因数分解:

$3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{307}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 4756752

約数和(自身を除く): 2035197

約数列:

[1, 3, 5, 9, 15, 45, 197, 307, 591, 921, 985, 1535, 1773, 2763, 2955, 4605, 8865, 13815, 60479, 181437, 302395, 544311, 907185, 2721555]

約数ペア:

[(1, 2721555), (3, 907185), (5, 544311), (9, 302395), (15, 181437), (45, 60479), (197, 13815), (307, 8865), (591, 4605), (921, 2955), (985, 2763), (1535, 1773)]