199972059

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{221453}}^1$

素因数の和:221506

約数の個数: 16

約数和(自身を含む): 311807232

約数和(自身を除く): 111835173

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 221453, 664359, 1550171, 4650513, 9522479, 28567437, 66657353, 199972059]

約数ペア:

[(1, 199972059), (3, 66657353), (7, 28567437), (21, 9522479), (43, 4650513), (129, 1550171), (301, 664359), (903, 221453)]