18383885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 25546752

約数和(自身を除く): 7162867

約数列:

[1, 5, 13, 17, 65, 85, 127, 131, 221, 635, 655, 1105, 1651, 1703, 2159, 2227, 8255, 8515, 10795, 11135, 16637, 28067, 28951, 83185, 140335, 144755, 216281, 282829, 1081405, 1414145, 3676777, 18383885]

約数ペア:

[(1, 18383885), (5, 3676777), (13, 1414145), (17, 1081405), (65, 282829), (85, 216281), (127, 144755), (131, 140335), (221, 83185), (635, 28951), (655, 28067), (1105, 16637), (1651, 11135), (1703, 10795), (2159, 8515), (2227, 8255)]