18186985

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{1123}}^1$

素因数の和:1248

約数の個数: 16

約数和(自身を含む): 22659840

約数和(自身を除く): 4472855

約数列:

[1, 5, 41, 79, 205, 395, 1123, 3239, 5615, 16195, 46043, 88717, 230215, 443585, 3637397, 18186985]

約数ペア:

[(1, 18186985), (5, 3637397), (41, 443585), (79, 230215), (205, 88717), (395, 46043), (1123, 16195), (3239, 5615)]