81864945

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{35671}}^1$

素因数の和:35702

約数の個数: 32

約数和(自身を含む): 154103040

約数和(自身を除く): 72238095

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 35671, 107013, 178355, 321039, 535065, 606407, 963117, 1605195, 1819221, 3032035, 4815585, 5457663, 9096105, 16372989, 27288315, 81864945]

約数ペア:

[(1, 81864945), (3, 27288315), (5, 16372989), (9, 9096105), (15, 5457663), (17, 4815585), (27, 3032035), (45, 1819221), (51, 1605195), (85, 963117), (135, 606407), (153, 535065), (255, 321039), (459, 178355), (765, 107013), (2295, 35671)]