18804165

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20551}}^1$

素因数の和:20620

約数の個数: 16

約数和(自身を含む): 30581376

約数和(自身を除く): 11777211

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 20551, 61653, 102755, 308265, 1253611, 3760833, 6268055, 18804165]

約数ペア:

[(1, 18804165), (3, 6268055), (5, 3760833), (15, 1253611), (61, 308265), (183, 102755), (305, 61653), (915, 20551)]