28405539

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{6701}}^1$

素因数の和:6867

約数の個数: 16

約数和(自身を含む): 42356640

約数和(自身を除く): 13951101

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 6701, 20103, 60309, 180927, 1052057, 3156171, 9468513, 28405539]

約数ペア:

[(1, 28405539), (3, 9468513), (9, 3156171), (27, 1052057), (157, 180927), (471, 60309), (1413, 20103), (4239, 6701)]