18687735

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1987}}^1$

素因数の和:2028

約数の個数: 48

約数和(自身を含む): 37215360

約数和(自身を除く): 18527625

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 209, 285, 495, 627, 855, 1045, 1881, 1987, 3135, 5961, 9405, 9935, 17883, 21857, 29805, 37753, 65571, 89415, 109285, 113259, 188765, 196713, 327855, 339777, 415283, 566295, 983565, 1245849, 1698885, 2076415, 3737547, 6229245, 18687735]

約数ペア:

[(1, 18687735), (3, 6229245), (5, 3737547), (9, 2076415), (11, 1698885), (15, 1245849), (19, 983565), (33, 566295), (45, 415283), (55, 339777), (57, 327855), (95, 196713), (99, 188765), (165, 113259), (171, 109285), (209, 89415), (285, 65571), (495, 37753), (627, 29805), (855, 21857), (1045, 17883), (1881, 9935), (1987, 9405), (3135, 5961)]