20152719

素因数分解:

$3^5\times {\mathrm{239}}^1\times {\mathrm{347}}^1$

素因数の和:601

約数の個数: 24

約数和(自身を含む): 30401280

約数和(自身を除く): 10248561

約数列:

[1, 3, 9, 27, 81, 239, 243, 347, 717, 1041, 2151, 3123, 6453, 9369, 19359, 28107, 58077, 82933, 84321, 248799, 746397, 2239191, 6717573, 20152719]

約数ペア:

[(1, 20152719), (3, 6717573), (9, 2239191), (27, 746397), (81, 248799), (239, 84321), (243, 82933), (347, 58077), (717, 28107), (1041, 19359), (2151, 9369), (3123, 6453)]