66681993

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{6389}}^1$

素因数の和:6477

約数の個数: 24

約数和(自身を含む): 104898240

約数和(自身を除く): 38216247

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 3479, 6389, 10437, 19167, 44723, 134169, 313061, 453619, 939183, 1360857, 3175333, 9525999, 22227331, 66681993]

約数ペア:

[(1, 66681993), (3, 22227331), (7, 9525999), (21, 3175333), (49, 1360857), (71, 939183), (147, 453619), (213, 313061), (497, 134169), (1491, 44723), (3479, 19167), (6389, 10437)]