21259254

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{66853}}^1$

素因数の和:66911

約数の個数: 16

約数和(自身を含む): 43321392

約数和(自身を除く): 22062138

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 66853, 133706, 200559, 401118, 3543209, 7086418, 10629627, 21259254]

約数ペア:

[(1, 21259254), (2, 10629627), (3, 7086418), (6, 3543209), (53, 401118), (106, 200559), (159, 133706), (318, 66853)]