20829789

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2141}}^1$

素因数の和:2217

約数の個数: 24

約数和(自身を含む): 32078592

約数和(自身を除く): 11248803

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 423, 1081, 2141, 3243, 6423, 9729, 19269, 49243, 100627, 147729, 301881, 443187, 905643, 2314421, 6943263, 20829789]

約数ペア:

[(1, 20829789), (3, 6943263), (9, 2314421), (23, 905643), (47, 443187), (69, 301881), (141, 147729), (207, 100627), (423, 49243), (1081, 19269), (2141, 9729), (3243, 6423)]