16021881

素因数分解:

$3^4\times {\mathrm{223}}^1\times {\mathrm{887}}^1$

素因数の和:1122

約数の個数: 20

約数和(自身を含む): 24068352

約数和(自身を除く): 8046471

約数列:

[1, 3, 9, 27, 81, 223, 669, 887, 2007, 2661, 6021, 7983, 18063, 23949, 71847, 197801, 593403, 1780209, 5340627, 16021881]

約数ペア:

[(1, 16021881), (3, 5340627), (9, 1780209), (27, 593403), (81, 197801), (223, 71847), (669, 23949), (887, 18063), (2007, 7983), (2661, 6021)]