20161532188

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31306727}}^1$

素因数の和:31306761

約数の個数: 24

約数和(自身を含む): 42076242432

約数和(自身を除く): 21914710244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 31306727, 62613454, 125226908, 219147089, 438294178, 720054721, 876588356, 1440109442, 2880218884, 5040383047, 10080766094, 20161532188]

約数ペア:

[(1, 20161532188), (2, 10080766094), (4, 5040383047), (7, 2880218884), (14, 1440109442), (23, 876588356), (28, 720054721), (46, 438294178), (92, 219147089), (161, 125226908), (322, 62613454), (644, 31306727)]