27721967

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{317}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 35366688

約数和(自身を除く): 7644721

約数列:

[1, 7, 13, 31, 91, 217, 317, 403, 961, 2219, 2821, 4121, 6727, 9827, 12493, 28847, 68789, 87451, 127751, 304637, 894257, 2132459, 3960281, 27721967]

約数ペア:

[(1, 27721967), (7, 3960281), (13, 2132459), (31, 894257), (91, 304637), (217, 127751), (317, 87451), (403, 68789), (961, 28847), (2219, 12493), (2821, 9827), (4121, 6727)]