20145969

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{43891}}^1$

素因数の和:43917

約数の個数: 16

約数和(自身を含む): 31602240

約数和(自身を除く): 11456271

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 43891, 131673, 395019, 746147, 1185057, 2238441, 6715323, 20145969]

約数ペア:

[(1, 20145969), (3, 6715323), (9, 2238441), (17, 1185057), (27, 746147), (51, 395019), (153, 131673), (459, 43891)]