20189727

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{131959}}^1$

素因数の和:131982

約数の個数: 12

約数和(自身を含む): 30878640

約数和(自身を除く): 10688913

約数列:

[1, 3, 9, 17, 51, 153, 131959, 395877, 1187631, 2243303, 6729909, 20189727]

約数ペア:

[(1, 20189727), (3, 6729909), (9, 2243303), (17, 1187631), (51, 395877), (153, 131959)]