20928556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{475649}}^1$

素因数の和:475664

約数の個数: 12

約数和(自身を含む): 39954600

約数和(自身を除く): 19026044

約数列:

[1, 2, 4, 11, 22, 44, 475649, 951298, 1902596, 5232139, 10464278, 20928556]

約数ペア:

[(1, 20928556), (2, 10464278), (4, 5232139), (11, 1902596), (22, 951298), (44, 475649)]