20386845

素因数分解:

$3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1009}}^1$

素因数の和:1469

約数の個数: 24

約数和(自身を含む): 35451000

約数和(自身を除く): 15064155

約数列:

[1, 3, 5, 9, 15, 45, 449, 1009, 1347, 2245, 3027, 4041, 5045, 6735, 9081, 15135, 20205, 45405, 453041, 1359123, 2265205, 4077369, 6795615, 20386845]

約数ペア:

[(1, 20386845), (3, 6795615), (5, 4077369), (9, 2265205), (15, 1359123), (45, 453041), (449, 45405), (1009, 20205), (1347, 15135), (2245, 9081), (3027, 6735), (4041, 5045)]