18389935

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{823}}^1$

素因数の和:978

約数の個数: 16

約数和(自身を含む): 22841280

約数和(自身を除く): 4451345

約数列:

[1, 5, 41, 109, 205, 545, 823, 4115, 4469, 22345, 33743, 89707, 168715, 448535, 3677987, 18389935]

約数ペア:

[(1, 18389935), (5, 3677987), (41, 448535), (109, 168715), (205, 89707), (545, 33743), (823, 22345), (4115, 4469)]