20989866

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{205783}}^1$

素因数の和:205805

約数の個数: 16

約数和(自身を含む): 44449344

約数和(自身を除く): 23459478

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 205783, 411566, 617349, 1234698, 3498311, 6996622, 10494933, 20989866]

約数ペア:

[(1, 20989866), (2, 10494933), (3, 6996622), (6, 3498311), (17, 1234698), (34, 617349), (51, 411566), (102, 205783)]