21538594

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139861}}^1$

素因数の和:139881

約数の個数: 16

約数和(自身を含む): 40280256

約数和(自身を除く): 18741662

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 139861, 279722, 979027, 1538471, 1958054, 3076942, 10769297, 21538594]

約数ペア:

[(1, 21538594), (2, 10769297), (7, 3076942), (11, 1958054), (14, 1538471), (22, 979027), (77, 279722), (154, 139861)]