208030431

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{32911}}^1$

素因数の和:32971

約数の個数: 24

約数和(自身を含む): 330173184

約数和(自身を除く): 122142753

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 6321, 32911, 98733, 230377, 691131, 1415173, 1612639, 4245519, 4837917, 9906211, 29718633, 69343477, 208030431]

約数ペア:

[(1, 208030431), (3, 69343477), (7, 29718633), (21, 9906211), (43, 4837917), (49, 4245519), (129, 1612639), (147, 1415173), (301, 691131), (903, 230377), (2107, 98733), (6321, 32911)]