20427407

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20407}}^1$

素因数の和:20438

約数の個数: 16

約数和(自身を含む): 27428352

約数和(自身を除く): 7000945

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 20407, 142849, 224477, 265291, 1571339, 1857037, 2918201, 20427407]

約数ペア:

[(1, 20427407), (7, 2918201), (11, 1857037), (13, 1571339), (77, 265291), (91, 224477), (143, 142849), (1001, 20407)]