208067279

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{461}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 248171616

約数和(自身を除く): 40104337

約数列:

[1, 7, 49, 61, 151, 427, 461, 1057, 2989, 3227, 7399, 9211, 22589, 28121, 64477, 69611, 196847, 451339, 487277, 1377929, 3410939, 4246271, 29723897, 208067279]

約数ペア:

[(1, 208067279), (7, 29723897), (49, 4246271), (61, 3410939), (151, 1377929), (427, 487277), (461, 451339), (1057, 196847), (2989, 69611), (3227, 64477), (7399, 28121), (9211, 22589)]