21289180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{96769}}^1$

素因数の和:96789

約数の個数: 24

約数和(自身を含む): 48772080

約数和(自身を除く): 27482900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 96769, 193538, 387076, 483845, 967690, 1064459, 1935380, 2128918, 4257836, 5322295, 10644590, 21289180]

約数ペア:

[(1, 21289180), (2, 10644590), (4, 5322295), (5, 4257836), (10, 2128918), (11, 1935380), (20, 1064459), (22, 967690), (44, 483845), (55, 387076), (110, 193538), (220, 96769)]