21555564

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{12923}}^1$

素因数の和:13069

約数の個数: 24

約数和(自身を含む): 50662080

約数和(自身を除く): 29106516

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 12923, 25846, 38769, 51692, 77538, 155076, 1796297, 3592594, 5388891, 7185188, 10777782, 21555564]

約数ペア:

[(1, 21555564), (2, 10777782), (3, 7185188), (4, 5388891), (6, 3592594), (12, 1796297), (139, 155076), (278, 77538), (417, 51692), (556, 38769), (834, 25846), (1668, 12923)]