28604421

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{20773}}^1$

素因数の和:20802

約数の個数: 20

約数和(自身を含む): 45245772

約数和(自身を除く): 16641351

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 20773, 62319, 186957, 353141, 560871, 1059423, 1682613, 3178269, 9534807, 28604421]

約数ペア:

[(1, 28604421), (3, 9534807), (9, 3178269), (17, 1682613), (27, 1059423), (51, 560871), (81, 353141), (153, 186957), (459, 62319), (1377, 20773)]