254995821

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{211}}^1\times {\mathrm{2857}}^1$

素因数の和:3121

約数の個数: 24

約数和(自身を含む): 378079104

約数和(自身を除く): 123083283

約数列:

[1, 3, 9, 47, 141, 211, 423, 633, 1899, 2857, 8571, 9917, 25713, 29751, 89253, 134279, 402837, 602827, 1208511, 1808481, 5425443, 28332869, 84998607, 254995821]

約数ペア:

[(1, 254995821), (3, 84998607), (9, 28332869), (47, 5425443), (141, 1808481), (211, 1208511), (423, 602827), (633, 402837), (1899, 134279), (2857, 89253), (8571, 29751), (9917, 25713)]