20539485

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26849}}^1$

素因数の和:26877

約数の個数: 24

約数和(自身を含む): 37697400

約数和(自身を除く): 17157915

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 26849, 80547, 134245, 241641, 402735, 456433, 1208205, 1369299, 2282165, 4107897, 6846495, 20539485]

約数ペア:

[(1, 20539485), (3, 6846495), (5, 4107897), (9, 2282165), (15, 1369299), (17, 1208205), (45, 456433), (51, 402735), (85, 241641), (153, 134245), (255, 80547), (765, 26849)]