208537679

素因数分解:

$7^2\times {\mathrm{1999}}^1\times {\mathrm{2129}}^1$

素因数の和:4142

約数の個数: 12

約数和(自身を含む): 242820000

約数和(自身を除く): 34282321

約数列:

[1, 7, 49, 1999, 2129, 13993, 14903, 97951, 104321, 4255871, 29791097, 208537679]

約数ペア:

[(1, 208537679), (7, 29791097), (49, 4255871), (1999, 104321), (2129, 97951), (13993, 14903)]