21226156

素因数分解:

$2^2\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1361}}^1$

素因数の和:1929

約数の個数: 24

約数和(自身を含む): 42559776

約数和(自身を除く): 21333620

約数列:

[1, 2, 4, 7, 14, 28, 557, 1114, 1361, 2228, 2722, 3899, 5444, 7798, 9527, 15596, 19054, 38108, 758077, 1516154, 3032308, 5306539, 10613078, 21226156]

約数ペア:

[(1, 21226156), (2, 10613078), (4, 5306539), (7, 3032308), (14, 1516154), (28, 758077), (557, 38108), (1114, 19054), (1361, 15596), (2228, 9527), (2722, 7798), (3899, 5444)]