20445755

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1667}}^1$

素因数の和:1906

約数の個数: 16

約数和(自身を含む): 26901504

約数和(自身を除く): 6455749

約数列:

[1, 5, 11, 55, 223, 1115, 1667, 2453, 8335, 12265, 18337, 91685, 371741, 1858705, 4089151, 20445755]

約数ペア:

[(1, 20445755), (5, 4089151), (11, 1858705), (55, 371741), (223, 91685), (1115, 18337), (1667, 12265), (2453, 8335)]