21194750

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{4987}}^1$

素因数の和:5021

約数の個数: 32

約数和(自身を含む): 42018912

約数和(自身を除く): 20824162

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 425, 850, 2125, 4250, 4987, 9974, 24935, 49870, 84779, 124675, 169558, 249350, 423895, 623375, 847790, 1246750, 2119475, 4238950, 10597375, 21194750]

約数ペア:

[(1, 21194750), (2, 10597375), (5, 4238950), (10, 2119475), (17, 1246750), (25, 847790), (34, 623375), (50, 423895), (85, 249350), (125, 169558), (170, 124675), (250, 84779), (425, 49870), (850, 24935), (2125, 9974), (4250, 4987)]