20928819

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{10009}}^1$

素因数の和:10070

約数の個数: 16

約数和(自身を含む): 30270240

約数和(自身を除く): 9341421

約数列:

[1, 3, 17, 41, 51, 123, 697, 2091, 10009, 30027, 170153, 410369, 510459, 1231107, 6976273, 20928819]

約数ペア:

[(1, 20928819), (3, 6976273), (17, 1231107), (41, 510459), (51, 410369), (123, 170153), (697, 30027), (2091, 10009)]