20916171

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{45569}}^1$

素因数の和:45595

約数の個数: 16

約数和(自身を含む): 32810400

約数和(自身を除く): 11894229

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 45569, 136707, 410121, 774673, 1230363, 2324019, 6972057, 20916171]

約数ペア:

[(1, 20916171), (3, 6972057), (9, 2324019), (17, 1230363), (27, 774673), (51, 410121), (153, 136707), (459, 45569)]