21813616

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{123941}}^1$

素因数の和:123960

約数の個数: 20

約数和(自身を含む): 46106424

約数和(自身を除く): 24292808

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 123941, 247882, 495764, 991528, 1363351, 1983056, 2726702, 5453404, 10906808, 21813616]

約数ペア:

[(1, 21813616), (2, 10906808), (4, 5453404), (8, 2726702), (11, 1983056), (16, 1363351), (22, 991528), (44, 495764), (88, 247882), (176, 123941)]