16881221

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1117}}^1$

素因数の和:1268

約数の個数: 16

約数和(自身を含む): 20606976

約数和(自身を除く): 3725755

約数列:

[1, 7, 17, 119, 127, 889, 1117, 2159, 7819, 15113, 18989, 132923, 141859, 993013, 2411603, 16881221]

約数ペア:

[(1, 16881221), (7, 2411603), (17, 993013), (119, 141859), (127, 132923), (889, 18989), (1117, 15113), (2159, 7819)]