13278881

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{5563}}^1$

素因数の和:5612

約数の個数: 16

約数和(自身を含む): 17092608

約数和(自身を除く): 3813727

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 5563, 38941, 61193, 172453, 428351, 1207171, 1896983, 13278881]

約数ペア:

[(1, 13278881), (7, 1896983), (11, 1207171), (31, 428351), (77, 172453), (217, 61193), (341, 38941), (2387, 5563)]