18987305

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4027}}^1$

素因数の和:4096

約数の個数: 16

約数和(自身を含む): 24361344

約数和(自身を除く): 5374039

約数列:

[1, 5, 23, 41, 115, 205, 943, 4027, 4715, 20135, 92621, 165107, 463105, 825535, 3797461, 18987305]

約数ペア:

[(1, 18987305), (5, 3797461), (23, 825535), (41, 463105), (115, 165107), (205, 92621), (943, 20135), (4027, 4715)]