21968276

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{45389}}^1$

素因数の和:45415

約数の個数: 18

約数和(自身を含む): 42258090

約数和(自身を除く): 20289814

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 45389, 90778, 181556, 499279, 998558, 1997116, 5492069, 10984138, 21968276]

約数ペア:

[(1, 21968276), (2, 10984138), (4, 5492069), (11, 1997116), (22, 998558), (44, 499279), (121, 181556), (242, 90778), (484, 45389)]