20904063

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{1237}}^1$

素因数の和:1414

約数の個数: 16

約数和(自身を含む): 28761216

約数和(自身を除く): 7857153

約数列:

[1, 3, 43, 129, 131, 393, 1237, 3711, 5633, 16899, 53191, 159573, 162047, 486141, 6968021, 20904063]

約数ペア:

[(1, 20904063), (3, 6968021), (43, 486141), (129, 162047), (131, 159573), (393, 53191), (1237, 16899), (3711, 5633)]