21151768

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{21851}}^1$

素因数の和:21879

約数の個数: 24

約数和(自身を含む): 43594740

約数和(自身を除く): 22442972

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 21851, 43702, 87404, 174808, 240361, 480722, 961444, 1922888, 2643971, 5287942, 10575884, 21151768]

約数ペア:

[(1, 21151768), (2, 10575884), (4, 5287942), (8, 2643971), (11, 1922888), (22, 961444), (44, 480722), (88, 240361), (121, 174808), (242, 87404), (484, 43702), (968, 21851)]