81316268

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{42979}}^1$

素因数の和:43037

約数の個数: 24

約数和(自身を含む): 158854080

約数和(自身を除く): 77537812

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 42979, 85958, 171916, 472769, 945538, 1848097, 1891076, 3696194, 7392388, 20329067, 40658134, 81316268]

約数ペア:

[(1, 81316268), (2, 40658134), (4, 20329067), (11, 7392388), (22, 3696194), (43, 1891076), (44, 1848097), (86, 945538), (172, 472769), (473, 171916), (946, 85958), (1892, 42979)]