21232816

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120641}}^1$

素因数の和:120660

約数の個数: 20

約数和(自身を含む): 44878824

約数和(自身を除く): 23646008

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120641, 241282, 482564, 965128, 1327051, 1930256, 2654102, 5308204, 10616408, 21232816]

約数ペア:

[(1, 21232816), (2, 10616408), (4, 5308204), (8, 2654102), (11, 1930256), (16, 1327051), (22, 965128), (44, 482564), (88, 241282), (176, 120641)]