21069285

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34259}}^1$

素因数の和:34308

約数の個数: 16

約数和(自身を含む): 34534080

約数和(自身を除く): 13464795

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 34259, 102777, 171295, 513885, 1404619, 4213857, 7023095, 21069285]

約数ペア:

[(1, 21069285), (3, 7023095), (5, 4213857), (15, 1404619), (41, 513885), (123, 171295), (205, 102777), (615, 34259)]