208080009

素因数分解:

$3^4\times {\mathrm{419}}^1\times {\mathrm{6131}}^1$

素因数の和:6562

約数の個数: 20

約数和(自身を含む): 311628240

約数和(自身を除く): 103548231

約数列:

[1, 3, 9, 27, 81, 419, 1257, 3771, 6131, 11313, 18393, 33939, 55179, 165537, 496611, 2568889, 7706667, 23120001, 69360003, 208080009]

約数ペア:

[(1, 208080009), (3, 69360003), (9, 23120001), (27, 7706667), (81, 2568889), (419, 496611), (1257, 165537), (3771, 55179), (6131, 33939), (11313, 18393)]