18698986

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{3559}}^1$

素因数の和:3669

約数の個数: 16

約数和(自身を含む): 29220480

約数和(自身を除く): 10521494

約数列:

[1, 2, 37, 71, 74, 142, 2627, 3559, 5254, 7118, 131683, 252689, 263366, 505378, 9349493, 18698986]

約数ペア:

[(1, 18698986), (2, 9349493), (37, 505378), (71, 263366), (74, 252689), (142, 131683), (2627, 7118), (3559, 5254)]