208864131

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{27551}}^1$

素因数の和:27599

約数の個数: 24

約数和(自身を含む): 335913984

約数和(自身を除く): 127049853

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 7581, 27551, 82653, 192857, 523469, 578571, 1570407, 3664283, 9945911, 10992849, 29837733, 69621377, 208864131]

約数ペア:

[(1, 208864131), (3, 69621377), (7, 29837733), (19, 10992849), (21, 9945911), (57, 3664283), (133, 1570407), (361, 578571), (399, 523469), (1083, 192857), (2527, 82653), (7581, 27551)]