18895905

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{269}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 18843615

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 223, 269, 315, 669, 807, 1115, 1345, 1561, 1883, 2007, 2421, 3345, 4035, 4683, 5649, 7805, 9415, 10035, 12105, 14049, 16947, 23415, 28245, 59987, 70245, 84735, 179961, 299935, 419909, 539883, 899805, 1259727, 2099545, 2699415, 3779181, 6298635, 18895905]

約数ペア:

[(1, 18895905), (3, 6298635), (5, 3779181), (7, 2699415), (9, 2099545), (15, 1259727), (21, 899805), (35, 539883), (45, 419909), (63, 299935), (105, 179961), (223, 84735), (269, 70245), (315, 59987), (669, 28245), (807, 23415), (1115, 16947), (1345, 14049), (1561, 12105), (1883, 10035), (2007, 9415), (2421, 7805), (3345, 5649), (4035, 4683)]