20521204

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{1721}}^1$

素因数の和:2007

約数の個数: 24

約数和(自身を含む): 39344256

約数和(自身を除く): 18823052

約数列:

[1, 2, 4, 11, 22, 44, 271, 542, 1084, 1721, 2981, 3442, 5962, 6884, 11924, 18931, 37862, 75724, 466391, 932782, 1865564, 5130301, 10260602, 20521204]

約数ペア:

[(1, 20521204), (2, 10260602), (4, 5130301), (11, 1865564), (22, 932782), (44, 466391), (271, 75724), (542, 37862), (1084, 18931), (1721, 11924), (2981, 6884), (3442, 5962)]