257423978

素因数分解:

$2^1\times 7^1\times {\mathrm{3061}}^1\times {\mathrm{6007}}^1$

素因数の和:9077

約数の個数: 16

約数和(自身を含む): 441515904

約数和(自身を除く): 184091926

約数列:

[1, 2, 7, 14, 3061, 6007, 6122, 12014, 21427, 42049, 42854, 84098, 18387427, 36774854, 128711989, 257423978]

約数ペア:

[(1, 257423978), (2, 128711989), (7, 36774854), (14, 18387427), (3061, 84098), (6007, 42854), (6122, 42049), (12014, 21427)]