21246800

素因数分解:

$2^4\times 5^2\times {\mathrm{53117}}^1$

素因数の和:53135

約数の個数: 30

約数和(自身を含む): 51046398

約数和(自身を除く): 29799598

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53117, 106234, 212468, 265585, 424936, 531170, 849872, 1062340, 1327925, 2124680, 2655850, 4249360, 5311700, 10623400, 21246800]

約数ペア:

[(1, 21246800), (2, 10623400), (4, 5311700), (5, 4249360), (8, 2655850), (10, 2124680), (16, 1327925), (20, 1062340), (25, 849872), (40, 531170), (50, 424936), (80, 265585), (100, 212468), (200, 106234), (400, 53117)]