21376845

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{22621}}^1$

素因数の和:22642

約数の個数: 32

約数和(自身を含む): 43434240

約数和(自身を除く): 22057395

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 22621, 67863, 113105, 158347, 203589, 339315, 475041, 610767, 791735, 1017945, 1425123, 2375205, 3053835, 4275369, 7125615, 21376845]

約数ペア:

[(1, 21376845), (3, 7125615), (5, 4275369), (7, 3053835), (9, 2375205), (15, 1425123), (21, 1017945), (27, 791735), (35, 610767), (45, 475041), (63, 339315), (105, 203589), (135, 158347), (189, 113105), (315, 67863), (945, 22621)]