20161881

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{131777}}^1$

素因数の和:131800

約数の個数: 12

約数和(自身を含む): 30836052

約数和(自身を除く): 10674171

約数列:

[1, 3, 9, 17, 51, 153, 131777, 395331, 1185993, 2240209, 6720627, 20161881]

約数ペア:

[(1, 20161881), (3, 6720627), (9, 2240209), (17, 1185993), (51, 395331), (153, 131777)]