20992018

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1\times {\mathrm{563}}^1$

素因数の和:849

約数の個数: 16

約数和(自身を含む): 32026176

約数和(自身を除く): 11034158

約数列:

[1, 2, 103, 181, 206, 362, 563, 1126, 18643, 37286, 57989, 101903, 115978, 203806, 10496009, 20992018]

約数ペア:

[(1, 20992018), (2, 10496009), (103, 203806), (181, 115978), (206, 101903), (362, 57989), (563, 37286), (1126, 18643)]