20147399991

素因数分解:

$3^2\times {\mathrm{643}}^1\times {\mathrm{3481493}}^1$

素因数の和:3482142

約数の個数: 12

約数和(自身を含む): 29147067768

約数和(自身を除く): 8999667777

約数列:

[1, 3, 9, 643, 1929, 5787, 3481493, 10444479, 31333437, 2238599999, 6715799997, 20147399991]

約数ペア:

[(1, 20147399991), (3, 6715799997), (9, 2238599999), (643, 31333437), (1929, 10444479), (5787, 3481493)]