20620317

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{739}}^1$

素因数の和:944

約数の個数: 16

約数和(自身を含む): 28131840

約数和(自身を除く): 7511523

約数列:

[1, 3, 71, 131, 213, 393, 739, 2217, 9301, 27903, 52469, 96809, 157407, 290427, 6873439, 20620317]

約数ペア:

[(1, 20620317), (3, 6873439), (71, 290427), (131, 157407), (213, 96809), (393, 52469), (739, 27903), (2217, 9301)]