180387

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{131}}^1$

素因数の和:160

約数の個数: 20

約数和(自身を含む): 287496

約数和(自身を除く): 107109

約数列:

[1, 3, 9, 17, 27, 51, 81, 131, 153, 393, 459, 1179, 1377, 2227, 3537, 6681, 10611, 20043, 60129, 180387]

約数ペア:

[(1, 180387), (3, 60129), (9, 20043), (17, 10611), (27, 6681), (51, 3537), (81, 2227), (131, 1377), (153, 1179), (393, 459)]