19715564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6311}}^1$

素因数の和:6397

約数の個数: 24

約数和(自身を含む): 38174976

約数和(自身を除く): 18459412

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 6311, 12622, 25244, 69421, 138842, 277684, 448081, 896162, 1792324, 4928891, 9857782, 19715564]

約数ペア:

[(1, 19715564), (2, 9857782), (4, 4928891), (11, 1792324), (22, 896162), (44, 448081), (71, 277684), (142, 138842), (284, 69421), (781, 25244), (1562, 12622), (3124, 6311)]