20807280976

素因数分解:

$2^4\times {\mathrm{7621}}^1\times {\mathrm{170641}}^1$

素因数の和:178270

約数の個数: 20

約数和(自身を含む): 40319633044

約数和(自身を除く): 19512352068

約数列:

[1, 2, 4, 8, 16, 7621, 15242, 30484, 60968, 121936, 170641, 341282, 682564, 1365128, 2730256, 1300455061, 2600910122, 5201820244, 10403640488, 20807280976]

約数ペア:

[(1, 20807280976), (2, 10403640488), (4, 5201820244), (8, 2600910122), (16, 1300455061), (7621, 2730256), (15242, 1365128), (30484, 682564), (60968, 341282), (121936, 170641)]