1280688003

素因数分解:

$3^5\times 7^1\times {\mathrm{752903}}^1$

素因数の和:752925

約数の個数: 24

約数和(自身を含む): 2192456448

約数和(自身を除く): 911768445

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 752903, 2258709, 5270321, 6776127, 15810963, 20328381, 47432889, 60985143, 142298667, 182955429, 426896001, 1280688003]

約数ペア:

[(1, 1280688003), (3, 426896001), (7, 182955429), (9, 142298667), (21, 60985143), (27, 47432889), (63, 20328381), (81, 15810963), (189, 6776127), (243, 5270321), (567, 2258709), (1701, 752903)]