20927889

素因数分解:

$3^5\times {\mathrm{71}}^1\times {\mathrm{1213}}^1$

素因数の和:1299

約数の個数: 24

約数和(自身を含む): 31816512

約数和(自身を除く): 10888623

約数列:

[1, 3, 9, 27, 71, 81, 213, 243, 639, 1213, 1917, 3639, 5751, 10917, 17253, 32751, 86123, 98253, 258369, 294759, 775107, 2325321, 6975963, 20927889]

約数ペア:

[(1, 20927889), (3, 6975963), (9, 2325321), (27, 775107), (71, 294759), (81, 258369), (213, 98253), (243, 86123), (639, 32751), (1213, 17253), (1917, 10917), (3639, 5751)]