18978465

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{115021}}^1$

素因数の和:115040

約数の個数: 16

約数和(自身を含む): 33126336

約数和(自身を除く): 14147871

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 115021, 345063, 575105, 1265231, 1725315, 3795693, 6326155, 18978465]

約数ペア:

[(1, 18978465), (3, 6326155), (5, 3795693), (11, 1725315), (15, 1265231), (33, 575105), (55, 345063), (165, 115021)]