20990608

素因数分解:

$2^4\times {\mathrm{269}}^1\times {\mathrm{4877}}^1$

素因数の和:5154

約数の個数: 20

約数和(自身を含む): 40828860

約数和(自身を除く): 19838252

約数列:

[1, 2, 4, 8, 16, 269, 538, 1076, 2152, 4304, 4877, 9754, 19508, 39016, 78032, 1311913, 2623826, 5247652, 10495304, 20990608]

約数ペア:

[(1, 20990608), (2, 10495304), (4, 5247652), (8, 2623826), (16, 1311913), (269, 78032), (538, 39016), (1076, 19508), (2152, 9754), (4304, 4877)]