21000948003

素因数分解:

$3^4\times 7^1\times {\mathrm{37038709}}^1$

素因数の和:37038728

約数の個数: 20

約数和(自身を含む): 35853471280

約数和(自身を除く): 14852523277

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37038709, 111116127, 259270963, 333348381, 777812889, 1000045143, 2333438667, 3000135429, 7000316001, 21000948003]

約数ペア:

[(1, 21000948003), (3, 7000316001), (7, 3000135429), (9, 2333438667), (21, 1000045143), (27, 777812889), (63, 333348381), (81, 259270963), (189, 111116127), (567, 37038709)]