19815765

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3023}}^1$

素因数の和:3073

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 15020715

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1311, 2185, 3023, 6555, 9069, 15115, 45345, 57437, 69529, 172311, 208587, 287185, 347645, 861555, 1042935, 1321051, 3963153, 6605255, 19815765]

約数ペア:

[(1, 19815765), (3, 6605255), (5, 3963153), (15, 1321051), (19, 1042935), (23, 861555), (57, 347645), (69, 287185), (95, 208587), (115, 172311), (285, 69529), (345, 57437), (437, 45345), (1311, 15115), (2185, 9069), (3023, 6555)]