20512488003

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1307}}^1\times {\mathrm{4129}}^1$

素因数の和:5627

約数の個数: 32

約数和(自身を含む): 31461480960

約数和(自身を除く): 10948992957

約数列:

[1, 3, 7, 21, 181, 543, 1267, 1307, 3801, 3921, 4129, 9149, 12387, 27447, 28903, 86709, 236567, 709701, 747349, 1655969, 2242047, 4967907, 5231443, 5396603, 15694329, 16189809, 37776221, 113328663, 976785143, 2930355429, 6837496001, 20512488003]

約数ペア:

[(1, 20512488003), (3, 6837496001), (7, 2930355429), (21, 976785143), (181, 113328663), (543, 37776221), (1267, 16189809), (1307, 15694329), (3801, 5396603), (3921, 5231443), (4129, 4967907), (9149, 2242047), (12387, 1655969), (27447, 747349), (28903, 709701), (86709, 236567)]