21026764

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{477881}}^1$

素因数の和:477896

約数の個数: 12

約数和(自身を含む): 40142088

約数和(自身を除く): 19115324

約数列:

[1, 2, 4, 11, 22, 44, 477881, 955762, 1911524, 5256691, 10513382, 21026764]

約数ペア:

[(1, 21026764), (2, 10513382), (4, 5256691), (11, 1911524), (22, 955762), (44, 477881)]