18849985

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{4451}}^1$

素因数の和:4485

約数の個数: 24

約数和(自身を含む): 28421568

約数和(自身を除く): 9571583

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 4451, 22255, 31157, 48961, 155785, 244805, 342727, 538571, 1713635, 2692855, 3769997, 18849985]

約数ペア:

[(1, 18849985), (5, 3769997), (7, 2692855), (11, 1713635), (35, 538571), (55, 342727), (77, 244805), (121, 155785), (385, 48961), (605, 31157), (847, 22255), (4235, 4451)]