12321988

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2803}}^1$

素因数の和:2971

約数の個数: 24

約数和(自身を含む): 24809792

約数和(自身を除く): 12487804

約数列:

[1, 2, 4, 7, 14, 28, 157, 314, 628, 1099, 2198, 2803, 4396, 5606, 11212, 19621, 39242, 78484, 440071, 880142, 1760284, 3080497, 6160994, 12321988]

約数ペア:

[(1, 12321988), (2, 6160994), (4, 3080497), (7, 1760284), (14, 880142), (28, 440071), (157, 78484), (314, 39242), (628, 19621), (1099, 11212), (2198, 5606), (2803, 4396)]