19303977

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 33094656

約数和(自身を除く): 13790679

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 107, 121, 213, 231, 321, 363, 497, 749, 781, 847, 1177, 1491, 2247, 2343, 2541, 3531, 5467, 7597, 8239, 8591, 12947, 16401, 22791, 24717, 25773, 38841, 53179, 60137, 83567, 90629, 159537, 180411, 250701, 271887, 584969, 919237, 1754907, 2757711, 6434659, 19303977]

約数ペア:

[(1, 19303977), (3, 6434659), (7, 2757711), (11, 1754907), (21, 919237), (33, 584969), (71, 271887), (77, 250701), (107, 180411), (121, 159537), (213, 90629), (231, 83567), (321, 60137), (363, 53179), (497, 38841), (749, 25773), (781, 24717), (847, 22791), (1177, 16401), (1491, 12947), (2247, 8591), (2343, 8239), (2541, 7597), (3531, 5467)]