201221469

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{438391}}^1$

素因数の和:438417

約数の個数: 16

約数和(自身を含む): 315642240

約数和(自身を除く): 114420771

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 438391, 1315173, 3945519, 7452647, 11836557, 22357941, 67073823, 201221469]

約数ペア:

[(1, 201221469), (3, 67073823), (9, 22357941), (17, 11836557), (27, 7452647), (51, 3945519), (153, 1315173), (459, 438391)]