66139171

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{3739}}^1$

素因数の和:3791

約数の個数: 18

約数和(自身を含む): 81221580

約数和(自身を除く): 15082409

約数列:

[1, 7, 19, 49, 133, 361, 931, 2527, 3739, 17689, 26173, 71041, 183211, 497287, 1349779, 3481009, 9448453, 66139171]

約数ペア:

[(1, 66139171), (7, 9448453), (19, 3481009), (49, 1349779), (133, 497287), (361, 183211), (931, 71041), (2527, 26173), (3739, 17689)]