20127855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{613}}^1$

素因数の和:831

約数の個数: 32

約数和(自身を含む): 35366400

約数和(自身を除く): 15238545

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 199, 597, 613, 995, 1839, 2189, 2985, 3065, 6567, 6743, 9195, 10945, 20229, 32835, 33715, 101145, 121987, 365961, 609935, 1341857, 1829805, 4025571, 6709285, 20127855]

約数ペア:

[(1, 20127855), (3, 6709285), (5, 4025571), (11, 1829805), (15, 1341857), (33, 609935), (55, 365961), (165, 121987), (199, 101145), (597, 33715), (613, 32835), (995, 20229), (1839, 10945), (2189, 9195), (2985, 6743), (3065, 6567)]