20187687

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{30449}}^1$

素因数の和:30482

約数の個数: 16

約数和(自身を含む): 30693600

約数和(自身を除く): 10505913

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 30449, 91347, 395837, 517633, 1187511, 1552899, 6729229, 20187687]

約数ペア:

[(1, 20187687), (3, 6729229), (13, 1552899), (17, 1187511), (39, 517633), (51, 395837), (221, 91347), (663, 30449)]