21445857

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{46723}}^1$

素因数の和:46749

約数の個数: 16

約数和(自身を含む): 33641280

約数和(自身を除く): 12195423

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 46723, 140169, 420507, 794291, 1261521, 2382873, 7148619, 21445857]

約数ペア:

[(1, 21445857), (3, 7148619), (9, 2382873), (17, 1261521), (27, 794291), (51, 420507), (153, 140169), (459, 46723)]