20381842

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{9923}}^1$

素因数の和:10017

約数の個数: 16

約数和(自身を含む): 33344640

約数和(自身を除く): 12962798

約数列:

[1, 2, 13, 26, 79, 158, 1027, 2054, 9923, 19846, 128999, 257998, 783917, 1567834, 10190921, 20381842]

約数ペア:

[(1, 20381842), (2, 10190921), (13, 1567834), (26, 783917), (79, 257998), (158, 128999), (1027, 19846), (2054, 9923)]