257744279

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{20047}}^1$

素因数の和:20126

約数の個数: 16

約数和(自身を含む): 296389632

約数和(自身を除く): 38645353

約数列:

[1, 13, 23, 43, 299, 559, 989, 12857, 20047, 260611, 461081, 862021, 5994053, 11206273, 19826483, 257744279]

約数ペア:

[(1, 257744279), (13, 19826483), (23, 11206273), (43, 5994053), (299, 862021), (559, 461081), (989, 260611), (12857, 20047)]