20990497

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1499}}^1$

素因数の和:1596

約数の個数: 16

約数和(自身を含む): 24480000

約数和(自身を除く): 3489503

約数列:

[1, 11, 19, 67, 209, 737, 1273, 1499, 14003, 16489, 28481, 100433, 313291, 1104763, 1908227, 20990497]

約数ペア:

[(1, 20990497), (11, 1908227), (19, 1104763), (67, 313291), (209, 100433), (737, 28481), (1273, 16489), (1499, 14003)]