21186009

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{4643}}^1$

素因数の和:4678

約数の個数: 24

約数和(自身を含む): 33994080

約数和(自身を除く): 12808071

約数列:

[1, 3, 9, 13, 27, 39, 117, 169, 351, 507, 1521, 4563, 4643, 13929, 41787, 60359, 125361, 181077, 543231, 784667, 1629693, 2354001, 7062003, 21186009]

約数ペア:

[(1, 21186009), (3, 7062003), (9, 2354001), (13, 1629693), (27, 784667), (39, 543231), (117, 181077), (169, 125361), (351, 60359), (507, 41787), (1521, 13929), (4563, 4643)]