19505709

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{52861}}^1$

素因数の和:52908

約数の個数: 12

約数和(自身を含む): 28862652

約数和(自身を除く): 9356943

約数列:

[1, 3, 9, 41, 123, 369, 52861, 158583, 475749, 2167301, 6501903, 19505709]

約数ペア:

[(1, 19505709), (3, 6501903), (9, 2167301), (41, 475749), (123, 158583), (369, 52861)]