21283750

素因数分解:

$2^1\times 5^4\times {\mathrm{17027}}^1$

素因数の和:17049

約数の個数: 20

約数和(自身を含む): 39896604

約数和(自身を除く): 18612854

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 17027, 34054, 85135, 170270, 425675, 851350, 2128375, 4256750, 10641875, 21283750]

約数ペア:

[(1, 21283750), (2, 10641875), (5, 4256750), (10, 2128375), (25, 851350), (50, 425675), (125, 170270), (250, 85135), (625, 34054), (1250, 17027)]