20905912

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{60773}}^1$

素因数の和:60822

約数の個数: 16

約数和(自身を含む): 40110840

約数和(自身を除く): 19204928

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 60773, 121546, 243092, 486184, 2613239, 5226478, 10452956, 20905912]

約数ペア:

[(1, 20905912), (2, 10452956), (4, 5226478), (8, 2613239), (43, 486184), (86, 243092), (172, 121546), (344, 60773)]