20512166508

素因数分解:

$2^2\times 3^2\times {\mathrm{3389}}^1\times {\mathrm{168127}}^1$

素因数の和:171526

約数の個数: 36

約数和(自身を含む): 51865806720

約数和(自身を除く): 31353640212

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 3389, 6778, 10167, 13556, 20334, 30501, 40668, 61002, 122004, 168127, 336254, 504381, 672508, 1008762, 1513143, 2017524, 3026286, 6052572, 569782403, 1139564806, 1709347209, 2279129612, 3418694418, 5128041627, 6837388836, 10256083254, 20512166508]

約数ペア:

[(1, 20512166508), (2, 10256083254), (3, 6837388836), (4, 5128041627), (6, 3418694418), (9, 2279129612), (12, 1709347209), (18, 1139564806), (36, 569782403), (3389, 6052572), (6778, 3026286), (10167, 2017524), (13556, 1513143), (20334, 1008762), (30501, 672508), (40668, 504381), (61002, 336254), (122004, 168127)]