21787605422

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13948531}}^1$

素因数の和:13948615

約数の個数: 16

約数和(自身を含む): 36154594944

約数和(自身を除く): 14366989522

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 13948531, 27897062, 153433841, 306867682, 990345701, 1980691402, 10893802711, 21787605422]

約数ペア:

[(1, 21787605422), (2, 10893802711), (11, 1980691402), (22, 990345701), (71, 306867682), (142, 153433841), (781, 27897062), (1562, 13948531)]