1386847

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:139

約数の個数: 24

約数和(自身を含む): 1838592

約数和(自身を除く): 451745

約数列:

[1, 7, 11, 31, 49, 77, 83, 217, 341, 539, 581, 913, 1519, 2387, 2573, 4067, 6391, 16709, 18011, 28303, 44737, 126077, 198121, 1386847]

約数ペア:

[(1, 1386847), (7, 198121), (11, 126077), (31, 44737), (49, 28303), (77, 18011), (83, 16709), (217, 6391), (341, 4067), (539, 2573), (581, 2387), (913, 1519)]