19246005

素因数分解:

$3^4\times 5^1\times {\mathrm{47521}}^1$

素因数の和:47538

約数の個数: 20

約数和(自身を含む): 34500972

約数和(自身を除く): 15254967

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 47521, 142563, 237605, 427689, 712815, 1283067, 2138445, 3849201, 6415335, 19246005]

約数ペア:

[(1, 19246005), (3, 6415335), (5, 3849201), (9, 2138445), (15, 1283067), (27, 712815), (45, 427689), (81, 237605), (135, 142563), (405, 47521)]