21513200

素因数分解:

$2^4\times 5^2\times {\mathrm{53783}}^1$

素因数の和:53801

約数の個数: 30

約数和(自身を含む): 51686424

約数和(自身を除く): 30173224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53783, 107566, 215132, 268915, 430264, 537830, 860528, 1075660, 1344575, 2151320, 2689150, 4302640, 5378300, 10756600, 21513200]

約数ペア:

[(1, 21513200), (2, 10756600), (4, 5378300), (5, 4302640), (8, 2689150), (10, 2151320), (16, 1344575), (20, 1075660), (25, 860528), (40, 537830), (50, 430264), (80, 268915), (100, 215132), (200, 107566), (400, 53783)]