128440319

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{443}}^1$

素因数の和:615

約数の個数: 24

約数和(自身を含む): 153771408

約数和(自身を除く): 25331089

約数列:

[1, 7, 49, 61, 97, 427, 443, 679, 2989, 3101, 4753, 5917, 21707, 27023, 41419, 42971, 189161, 289933, 300797, 1324127, 2105579, 2621231, 18348617, 128440319]

約数ペア:

[(1, 128440319), (7, 18348617), (49, 2621231), (61, 2105579), (97, 1324127), (427, 300797), (443, 289933), (679, 189161), (2989, 42971), (3101, 41419), (4753, 27023), (5917, 21707)]