21786292

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{45013}}^1$

素因数の和:45039

約数の個数: 18

約数和(自身を含む): 41908034

約数和(自身を除く): 20121742

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 45013, 90026, 180052, 495143, 990286, 1980572, 5446573, 10893146, 21786292]

約数ペア:

[(1, 21786292), (2, 10893146), (4, 5446573), (11, 1980572), (22, 990286), (44, 495143), (121, 180052), (242, 90026), (484, 45013)]