81990286

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{344497}}^1$

素因数の和:344523

約数の個数: 16

約数和(自身を含む): 148823136

約数和(自身を除く): 66832850

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 344497, 688994, 2411479, 4822958, 5856449, 11712898, 40995143, 81990286]

約数ペア:

[(1, 81990286), (2, 40995143), (7, 11712898), (14, 5856449), (17, 4822958), (34, 2411479), (119, 688994), (238, 344497)]