20760021

素因数分解:

$3^2\times {\mathrm{113}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:405

約数の個数: 24

約数和(自身を含む): 30677400

約数和(自身を除く): 9917379

約数列:

[1, 3, 9, 113, 137, 149, 339, 411, 447, 1017, 1233, 1341, 15481, 16837, 20413, 46443, 50511, 61239, 139329, 151533, 183717, 2306669, 6920007, 20760021]

約数ペア:

[(1, 20760021), (3, 6920007), (9, 2306669), (113, 183717), (137, 151533), (149, 139329), (339, 61239), (411, 50511), (447, 46443), (1017, 20413), (1233, 16837), (1341, 15481)]