1813309631

素因数分解:

$7^4\times {\mathrm{19}}^1\times {\mathrm{39749}}^1$

素因数の和:39796

約数の個数: 20

約数和(自身を含む): 2226795000

約数和(自身を除く): 413485369

約数列:

[1, 7, 19, 49, 133, 343, 931, 2401, 6517, 39749, 45619, 278243, 755231, 1947701, 5286617, 13633907, 37006319, 95437349, 259044233, 1813309631]

約数ペア:

[(1, 1813309631), (7, 259044233), (19, 95437349), (49, 37006319), (133, 13633907), (343, 5286617), (931, 1947701), (2401, 755231), (6517, 278243), (39749, 45619)]