20658894

素因数分解:

$2^1\times 3^1\times {\mathrm{661}}^1\times {\mathrm{5209}}^1$

素因数の和:5875

約数の個数: 16

約数和(自身を含む): 41388240

約数和(自身を除く): 20729346

約数列:

[1, 2, 3, 6, 661, 1322, 1983, 3966, 5209, 10418, 15627, 31254, 3443149, 6886298, 10329447, 20658894]

約数ペア:

[(1, 20658894), (2, 10329447), (3, 6886298), (6, 3443149), (661, 31254), (1322, 15627), (1983, 10418), (3966, 5209)]