21657812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{21401}}^1$

素因数の和:21439

約数の個数: 24

約数和(自身を含む): 43146432

約数和(自身を除く): 21488620

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 21401, 42802, 85604, 235411, 470822, 492223, 941644, 984446, 1968892, 5414453, 10828906, 21657812]

約数ペア:

[(1, 21657812), (2, 10828906), (4, 5414453), (11, 1968892), (22, 984446), (23, 941644), (44, 492223), (46, 470822), (92, 235411), (253, 85604), (506, 42802), (1012, 21401)]