66389757

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{6361}}^1$

素因数の和:6449

約数の個数: 24

約数和(自身を含む): 104438592

約数和(自身を除く): 38048835

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 3479, 6361, 10437, 19083, 44527, 133581, 311689, 451631, 935067, 1354893, 3161417, 9484251, 22129919, 66389757]

約数ペア:

[(1, 66389757), (3, 22129919), (7, 9484251), (21, 3161417), (49, 1354893), (71, 935067), (147, 451631), (213, 311689), (497, 133581), (1491, 44527), (3479, 19083), (6361, 10437)]