20531816

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{62597}}^1$

素因数の和:62644

約数の個数: 16

約数和(自身を含む): 39436740

約数和(自身を除く): 18904924

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 62597, 125194, 250388, 500776, 2566477, 5132954, 10265908, 20531816]

約数ペア:

[(1, 20531816), (2, 10265908), (4, 5132954), (8, 2566477), (41, 500776), (82, 250388), (164, 125194), (328, 62597)]