20772521

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2267}}^1$

素因数の和:2309

約数の個数: 24

約数和(自身を含む): 27923616

約数和(自身を除く): 7151095

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 539, 833, 1309, 2267, 9163, 15869, 24937, 38539, 111083, 174559, 269773, 423929, 1221913, 1888411, 2967503, 20772521]

約数ペア:

[(1, 20772521), (7, 2967503), (11, 1888411), (17, 1221913), (49, 423929), (77, 269773), (119, 174559), (187, 111083), (539, 38539), (833, 24937), (1309, 15869), (2267, 9163)]