19971049

素因数分解:

$7^1\times {\mathrm{43}}^2\times {\mathrm{1543}}^1$

素因数の和:1636

約数の個数: 12

約数和(自身を含む): 23382336

約数和(自身を除く): 3411287

約数列:

[1, 7, 43, 301, 1543, 1849, 10801, 12943, 66349, 464443, 2853007, 19971049]

約数ペア:

[(1, 19971049), (7, 2853007), (43, 464443), (301, 66349), (1543, 12943), (1849, 10801)]