21817268

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{45077}}^1$

素因数の和:45103

約数の個数: 18

約数和(自身を含む): 41967618

約数和(自身を除く): 20150350

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 45077, 90154, 180308, 495847, 991694, 1983388, 5454317, 10908634, 21817268]

約数ペア:

[(1, 21817268), (2, 10908634), (4, 5454317), (11, 1983388), (22, 991694), (44, 495847), (121, 180308), (242, 90154), (484, 45077)]