20921263

素因数分解:

${\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{4021}}^1$

素因数の和:4086

約数の個数: 12

約数和(自身を含む): 23536744

約数和(自身を除く): 2615481

約数列:

[1, 11, 43, 121, 473, 4021, 5203, 44231, 172903, 486541, 1901933, 20921263]

約数ペア:

[(1, 20921263), (11, 1901933), (43, 486541), (121, 172903), (473, 44231), (4021, 5203)]