31031217

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{15889}}^1$

素因数の和:15933

約数の個数: 24

約数和(自身を含む): 52881920

約数和(自身を除く): 21850703

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 15889, 47667, 111223, 143001, 333669, 492559, 1001007, 1477677, 3447913, 4433031, 10343739, 31031217]

約数ペア:

[(1, 31031217), (3, 10343739), (7, 4433031), (9, 3447913), (21, 1477677), (31, 1001007), (63, 492559), (93, 333669), (217, 143001), (279, 111223), (651, 47667), (1953, 15889)]