21056684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20807}}^1$

素因数の和:20845

約数の個数: 24

約数和(自身を含む): 41948928

約数和(自身を除く): 20892244

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 20807, 41614, 83228, 228877, 457754, 478561, 915508, 957122, 1914244, 5264171, 10528342, 21056684]

約数ペア:

[(1, 21056684), (2, 10528342), (4, 5264171), (11, 1914244), (22, 957122), (23, 915508), (44, 478561), (46, 457754), (92, 228877), (253, 83228), (506, 41614), (1012, 20807)]