21084040905

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{29906441}}^1$

素因数の和:29906496

約数の個数: 16

約数和(自身を含む): 34452221184

約数和(自身を除く): 13368180279

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 29906441, 89719323, 149532205, 448596615, 1405602727, 4216808181, 7028013635, 21084040905]

約数ペア:

[(1, 21084040905), (3, 7028013635), (5, 4216808181), (15, 1405602727), (47, 448596615), (141, 149532205), (235, 89719323), (705, 29906441)]