21687056

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71339}}^1$

素因数の和:71366

約数の個数: 20

約数和(自身を含む): 44230800

約数和(自身を除く): 22543744

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71339, 142678, 285356, 570712, 1141424, 1355441, 2710882, 5421764, 10843528, 21687056]

約数ペア:

[(1, 21687056), (2, 10843528), (4, 5421764), (8, 2710882), (16, 1355441), (19, 1141424), (38, 570712), (76, 285356), (152, 142678), (304, 71339)]