21768266

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{15797}}^1$

素因数の和:15865

約数の個数: 16

約数和(自身を含む): 35829864

約数和(自身を除く): 14061598

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 15797, 31594, 205361, 410722, 837241, 1674482, 10884133, 21768266]

約数ペア:

[(1, 21768266), (2, 10884133), (13, 1674482), (26, 837241), (53, 410722), (106, 205361), (689, 31594), (1378, 15797)]