20698689

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{27271}}^1$

素因数の和:27308

約数の個数: 16

約数和(自身を含む): 31417344

約数和(自身を除く): 10718655

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 27271, 81813, 299981, 627233, 899943, 1881699, 6899563, 20698689]

約数ペア:

[(1, 20698689), (3, 6899563), (11, 1881699), (23, 899943), (33, 627233), (69, 299981), (253, 81813), (759, 27271)]