261702217

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{12433}}^1$

素因数の和:12568

約数の個数: 16

約数和(自身を含む): 311944192

約数和(自身を除く): 50241975

約数列:

[1, 7, 31, 97, 217, 679, 3007, 12433, 21049, 87031, 385423, 1206001, 2697961, 8442007, 37386031, 261702217]

約数ペア:

[(1, 261702217), (7, 37386031), (31, 8442007), (97, 2697961), (217, 1206001), (679, 385423), (3007, 87031), (12433, 21049)]