18866562

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2039

約数の個数: 48

約数和(自身を含む): 44688000

約数和(自身を除く): 25821438

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 121, 143, 242, 286, 363, 429, 726, 858, 1573, 1999, 3146, 3998, 4719, 5997, 9438, 11994, 21989, 25987, 43978, 51974, 65967, 77961, 131934, 155922, 241879, 285857, 483758, 571714, 725637, 857571, 1451274, 1715142, 3144427, 6288854, 9433281, 18866562]

約数ペア:

[(1, 18866562), (2, 9433281), (3, 6288854), (6, 3144427), (11, 1715142), (13, 1451274), (22, 857571), (26, 725637), (33, 571714), (39, 483758), (66, 285857), (78, 241879), (121, 155922), (143, 131934), (242, 77961), (286, 65967), (363, 51974), (429, 43978), (726, 25987), (858, 21989), (1573, 11994), (1999, 9438), (3146, 5997), (3998, 4719)]