18778606

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2080

約数の個数: 32

約数和(自身を含む): 35712000

約数和(自身を除く): 16933394

約数列:

[1, 2, 7, 11, 14, 22, 61, 77, 122, 154, 427, 671, 854, 1342, 1999, 3998, 4697, 9394, 13993, 21989, 27986, 43978, 121939, 153923, 243878, 307846, 853573, 1341329, 1707146, 2682658, 9389303, 18778606]

約数ペア:

[(1, 18778606), (2, 9389303), (7, 2682658), (11, 1707146), (14, 1341329), (22, 853573), (61, 307846), (77, 243878), (122, 153923), (154, 121939), (427, 43978), (671, 27986), (854, 21989), (1342, 13993), (1999, 9394), (3998, 4697)]