20005578

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{25847}}^1$

素因数の和:25898

約数の個数: 24

約数和(自身を含む): 44355168

約数和(自身を除く): 24349590

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 25847, 51694, 77541, 155082, 232623, 465246, 1111421, 2222842, 3334263, 6668526, 10002789, 20005578]

約数ペア:

[(1, 20005578), (2, 10002789), (3, 6668526), (6, 3334263), (9, 2222842), (18, 1111421), (43, 465246), (86, 232623), (129, 155082), (258, 77541), (387, 51694), (774, 25847)]