20385027

素因数分解:

$3^8\times {\mathrm{13}}^1\times {\mathrm{239}}^1$

素因数の和:276

約数の個数: 36

約数和(自身を含む): 33065760

約数和(自身を除く): 12680733

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 239, 243, 351, 717, 729, 1053, 2151, 2187, 3107, 3159, 6453, 6561, 9321, 9477, 19359, 27963, 28431, 58077, 83889, 85293, 174231, 251667, 522693, 755001, 1568079, 2265003, 6795009, 20385027]

約数ペア:

[(1, 20385027), (3, 6795009), (9, 2265003), (13, 1568079), (27, 755001), (39, 522693), (81, 251667), (117, 174231), (239, 85293), (243, 83889), (351, 58077), (717, 28431), (729, 27963), (1053, 19359), (2151, 9477), (2187, 9321), (3107, 6561), (3159, 6453)]