20427856

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{12641}}^1$

素因数の和:12750

約数の個数: 20

約数和(自身を含む): 39974004

約数和(自身を除く): 19546148

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 12641, 25282, 50564, 101128, 202256, 1276741, 2553482, 5106964, 10213928, 20427856]

約数ペア:

[(1, 20427856), (2, 10213928), (4, 5106964), (8, 2553482), (16, 1276741), (101, 202256), (202, 101128), (404, 50564), (808, 25282), (1616, 12641)]