81990054

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{239737}}^1$

素因数の和:239764

約数の個数: 24

約数和(自身を含む): 186995640

約数和(自身を除く): 105005586

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 239737, 479474, 719211, 1438422, 2157633, 4315266, 4555003, 9110006, 13665009, 27330018, 40995027, 81990054]

約数ペア:

[(1, 81990054), (2, 40995027), (3, 27330018), (6, 13665009), (9, 9110006), (18, 4555003), (19, 4315266), (38, 2157633), (57, 1438422), (114, 719211), (171, 479474), (342, 239737)]