21148940

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{5479}}^1$

素因数の和:5681

約数の個数: 24

約数和(自身を含む): 44651040

約数和(自身を除く): 23502100

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 5479, 10958, 21916, 27395, 54790, 109580, 1057447, 2114894, 4229788, 5287235, 10574470, 21148940]

約数ペア:

[(1, 21148940), (2, 10574470), (4, 5287235), (5, 4229788), (10, 2114894), (20, 1057447), (193, 109580), (386, 54790), (772, 27395), (965, 21916), (1930, 10958), (3860, 5479)]