18395816

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 35380800

約数和(自身を除く): 16984984

約数列:

[1, 2, 4, 8, 71, 139, 142, 233, 278, 284, 466, 556, 568, 932, 1112, 1864, 9869, 16543, 19738, 32387, 33086, 39476, 64774, 66172, 78952, 129548, 132344, 259096, 2299477, 4598954, 9197908, 18395816]

約数ペア:

[(1, 18395816), (2, 9197908), (4, 4598954), (8, 2299477), (71, 259096), (139, 132344), (142, 129548), (233, 78952), (278, 66172), (284, 64774), (466, 39476), (556, 33086), (568, 32387), (932, 19738), (1112, 16543), (1864, 9869)]