21903400

素因数分解:

$2^3\times 5^2\times {\mathrm{109517}}^1$

素因数の和:109533

約数の個数: 24

約数和(自身を含む): 50925870

約数和(自身を除く): 29022470

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 109517, 219034, 438068, 547585, 876136, 1095170, 2190340, 2737925, 4380680, 5475850, 10951700, 21903400]

約数ペア:

[(1, 21903400), (2, 10951700), (4, 5475850), (5, 4380680), (8, 2737925), (10, 2190340), (20, 1095170), (25, 876136), (40, 547585), (50, 438068), (100, 219034), (200, 109517)]