20005999

素因数分解:

${\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:406

約数の個数: 16

約数和(自身を含む): 22177792

約数和(自身を除く): 2171793

約数列:

[1, 13, 67, 103, 223, 871, 1339, 2899, 6901, 14941, 22969, 89713, 194233, 298597, 1538923, 20005999]

約数ペア:

[(1, 20005999), (13, 1538923), (67, 298597), (103, 194233), (223, 89713), (871, 22969), (1339, 14941), (2899, 6901)]