18239215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{2411}}^1$

素因数の和:2522

約数の個数: 16

約数和(自身を含む): 23444640

約数和(自身を除く): 5205425

約数列:

[1, 5, 17, 85, 89, 445, 1513, 2411, 7565, 12055, 40987, 204935, 214579, 1072895, 3647843, 18239215]

約数ペア:

[(1, 18239215), (5, 3647843), (17, 1072895), (85, 214579), (89, 204935), (445, 40987), (1513, 12055), (2411, 7565)]