2011905

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{2129}}^1$

素因数の和:2150

約数の個数: 32

約数和(自身を含む): 4089600

約数和(自身を除く): 2077695

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 2129, 6387, 10645, 14903, 19161, 31935, 44709, 57483, 74515, 95805, 134127, 223545, 287415, 402381, 670635, 2011905]

約数ペア:

[(1, 2011905), (3, 670635), (5, 402381), (7, 287415), (9, 223545), (15, 134127), (21, 95805), (27, 74515), (35, 57483), (45, 44709), (63, 31935), (105, 19161), (135, 14903), (189, 10645), (315, 6387), (945, 2129)]