20272876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1979}}^1$

素因数の和:2193

約数の個数: 24

約数和(自身を含む): 38419920

約数和(自身を除く): 18147044

約数列:

[1, 2, 4, 13, 26, 52, 197, 394, 788, 1979, 2561, 3958, 5122, 7916, 10244, 25727, 51454, 102908, 389863, 779726, 1559452, 5068219, 10136438, 20272876]

約数ペア:

[(1, 20272876), (2, 10136438), (4, 5068219), (13, 1559452), (26, 779726), (52, 389863), (197, 102908), (394, 51454), (788, 25727), (1979, 10244), (2561, 7916), (3958, 5122)]