20161838

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{1009}}^1$

素因数の和:1211

約数の個数: 16

約数和(自身を含む): 30881760

約数和(自身を除く): 10719922

約数列:

[1, 2, 97, 103, 194, 206, 1009, 2018, 9991, 19982, 97873, 103927, 195746, 207854, 10080919, 20161838]

約数ペア:

[(1, 20161838), (2, 10080919), (97, 207854), (103, 195746), (194, 103927), (206, 97873), (1009, 19982), (2018, 9991)]