18640827

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{22271}}^1$

素因数の和:22311

約数の個数: 16

約数和(自身を含む): 28508160

約数和(自身を除く): 9867333

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 22271, 66813, 200439, 601317, 690401, 2071203, 6213609, 18640827]

約数ペア:

[(1, 18640827), (3, 6213609), (9, 2071203), (27, 690401), (31, 601317), (93, 200439), (279, 66813), (837, 22271)]