21605181

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{32587}}^1$

素因数の和:32620

約数の個数: 16

約数和(自身を含む): 32848704

約数和(自身を除く): 11243523

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 32587, 97761, 423631, 553979, 1270893, 1661937, 7201727, 21605181]

約数ペア:

[(1, 21605181), (3, 7201727), (13, 1661937), (17, 1270893), (39, 553979), (51, 423631), (221, 97761), (663, 32587)]