20404709

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{727}}^1$

素因数の和:884

約数の個数: 16

約数和(自身を含む): 23482368

約数和(自身を除く): 3077659

約数列:

[1, 13, 17, 127, 221, 727, 1651, 2159, 9451, 12359, 28067, 92329, 160667, 1200277, 1569593, 20404709]

約数ペア:

[(1, 20404709), (13, 1569593), (17, 1200277), (127, 160667), (221, 92329), (727, 28067), (1651, 12359), (2159, 9451)]