18810231

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{881}}^1$

素因数の和:1542

約数の個数: 16

約数和(自身を含む): 27433728

約数和(自身を除く): 8623497

約数列:

[1, 3, 11, 33, 647, 881, 1941, 2643, 7117, 9691, 21351, 29073, 570007, 1710021, 6270077, 18810231]

約数ペア:

[(1, 18810231), (3, 6270077), (11, 1710021), (33, 570007), (647, 29073), (881, 21351), (1941, 9691), (2643, 7117)]