21099716

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{499}}^1$

素因数の和:576

約数の個数: 36

約数和(自身を含む): 41706000

約数和(自身を除く): 20606284

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 499, 682, 961, 998, 1364, 1922, 1996, 3844, 5489, 10571, 10978, 15469, 21142, 21956, 30938, 42284, 61876, 170159, 340318, 479539, 680636, 959078, 1918156, 5274929, 10549858, 21099716]

約数ペア:

[(1, 21099716), (2, 10549858), (4, 5274929), (11, 1918156), (22, 959078), (31, 680636), (44, 479539), (62, 340318), (124, 170159), (341, 61876), (499, 42284), (682, 30938), (961, 21956), (998, 21142), (1364, 15469), (1922, 10978), (1996, 10571), (3844, 5489)]