5250021

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^2\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 24

約数和(自身を含む): 8245440

約数和(自身を除く): 2995419

約数列:

[1, 3, 7, 21, 53, 89, 159, 267, 371, 623, 1113, 1869, 2809, 4717, 8427, 14151, 19663, 33019, 58989, 99057, 250001, 750003, 1750007, 5250021]

約数ペア:

[(1, 5250021), (3, 1750007), (7, 750003), (21, 250001), (53, 99057), (89, 58989), (159, 33019), (267, 19663), (371, 14151), (623, 8427), (1113, 4717), (1869, 2809)]