21707561

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{467}}^1$

素因数の和:580

約数の個数: 16

約数和(自身を含む): 23721984

約数和(自身を除く): 2014423

約数列:

[1, 23, 43, 47, 467, 989, 1081, 2021, 10741, 20081, 21949, 46483, 461863, 504827, 943807, 21707561]

約数ペア:

[(1, 21707561), (23, 943807), (43, 504827), (47, 461863), (467, 46483), (989, 21949), (1081, 20081), (2021, 10741)]