20657656

素因数分解:

$2^3\times {\mathrm{31}}^2\times {\mathrm{2687}}^1$

素因数の和:2755

約数の個数: 24

約数和(自身を含む): 40037760

約数和(自身を除く): 19380104

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 961, 1922, 2687, 3844, 5374, 7688, 10748, 21496, 83297, 166594, 333188, 666376, 2582207, 5164414, 10328828, 20657656]

約数ペア:

[(1, 20657656), (2, 10328828), (4, 5164414), (8, 2582207), (31, 666376), (62, 333188), (124, 166594), (248, 83297), (961, 21496), (1922, 10748), (2687, 7688), (3844, 5374)]