21538076

素因数分解:

$2^2\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1381}}^1$

素因数の和:1949

約数の個数: 24

約数和(自身を含む): 43184736

約数和(自身を除く): 21646660

約数列:

[1, 2, 4, 7, 14, 28, 557, 1114, 1381, 2228, 2762, 3899, 5524, 7798, 9667, 15596, 19334, 38668, 769217, 1538434, 3076868, 5384519, 10769038, 21538076]

約数ペア:

[(1, 21538076), (2, 10769038), (4, 5384519), (7, 3076868), (14, 1538434), (28, 769217), (557, 38668), (1114, 19334), (1381, 15596), (2228, 9667), (2762, 7798), (3899, 5524)]