20278161

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{44179}}^1$

素因数の和:44205

約数の個数: 16

約数和(自身を含む): 31809600

約数和(自身を除く): 11531439

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 44179, 132537, 397611, 751043, 1192833, 2253129, 6759387, 20278161]

約数ペア:

[(1, 20278161), (3, 6759387), (9, 2253129), (17, 1192833), (27, 751043), (51, 397611), (153, 132537), (459, 44179)]