20581444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{2521}}^1$

素因数の和:2695

約数の個数: 24

約数和(自身を含む): 39050648

約数和(自身を除く): 18469204

約数列:

[1, 2, 4, 13, 26, 52, 157, 314, 628, 2041, 2521, 4082, 5042, 8164, 10084, 32773, 65546, 131092, 395797, 791594, 1583188, 5145361, 10290722, 20581444]

約数ペア:

[(1, 20581444), (2, 10290722), (4, 5145361), (13, 1583188), (26, 791594), (52, 395797), (157, 131092), (314, 65546), (628, 32773), (2041, 10084), (2521, 8164), (4082, 5042)]