28257724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{1153}}^1$

素因数の和:1725

約数の個数: 24

約数和(自身を含む): 54090288

約数和(自身を除く): 25832564

約数列:

[1, 2, 4, 11, 22, 44, 557, 1114, 1153, 2228, 2306, 4612, 6127, 12254, 12683, 24508, 25366, 50732, 642221, 1284442, 2568884, 7064431, 14128862, 28257724]

約数ペア:

[(1, 28257724), (2, 14128862), (4, 7064431), (11, 2568884), (22, 1284442), (44, 642221), (557, 50732), (1114, 25366), (1153, 24508), (2228, 12683), (2306, 12254), (4612, 6127)]