18289916

素因数分解:

$2^2\times {\mathrm{103}}^2\times {\mathrm{431}}^1$

素因数の和:641

約数の個数: 18

約数和(自身を含む): 32396112

約数和(自身を除く): 14106196

約数列:

[1, 2, 4, 103, 206, 412, 431, 862, 1724, 10609, 21218, 42436, 44393, 88786, 177572, 4572479, 9144958, 18289916]

約数ペア:

[(1, 18289916), (2, 9144958), (4, 4572479), (103, 177572), (206, 88786), (412, 44393), (431, 42436), (862, 21218), (1724, 10609)]