20279668

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{193}}^1\times {\mathrm{241}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 36149960

約数和(自身を除く): 15870292

約数列:

[1, 2, 4, 109, 193, 218, 241, 386, 436, 482, 772, 964, 21037, 26269, 42074, 46513, 52538, 84148, 93026, 105076, 186052, 5069917, 10139834, 20279668]

約数ペア:

[(1, 20279668), (2, 10139834), (4, 5069917), (109, 186052), (193, 105076), (218, 93026), (241, 84148), (386, 52538), (436, 46513), (482, 42074), (772, 26269), (964, 21037)]