20700315

素因数分解:

$3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2659}}^1$

素因数の和:2843

約数の個数: 24

約数和(自身を含む): 36101520

約数和(自身を除く): 15401205

約数列:

[1, 3, 5, 9, 15, 45, 173, 519, 865, 1557, 2595, 2659, 7785, 7977, 13295, 23931, 39885, 119655, 460007, 1380021, 2300035, 4140063, 6900105, 20700315]

約数ペア:

[(1, 20700315), (3, 6900105), (5, 4140063), (9, 2300035), (15, 1380021), (45, 460007), (173, 119655), (519, 39885), (865, 23931), (1557, 13295), (2595, 7977), (2659, 7785)]