18884853

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{311}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 30401280

約数和(自身を除く): 11516427

約数列:

[1, 3, 9, 13, 27, 39, 117, 173, 311, 351, 519, 933, 1557, 2249, 2799, 4043, 4671, 6747, 8397, 12129, 20241, 36387, 53803, 60723, 109161, 161409, 484227, 699439, 1452681, 2098317, 6294951, 18884853]

約数ペア:

[(1, 18884853), (3, 6294951), (9, 2098317), (13, 1452681), (27, 699439), (39, 484227), (117, 161409), (173, 109161), (311, 60723), (351, 53803), (519, 36387), (933, 20241), (1557, 12129), (2249, 8397), (2799, 6747), (4043, 4671)]