20686887

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{58937}}^1$

素因数の和:58959

約数の個数: 16

約数和(自身を含む): 33005280

約数和(自身を除く): 12318393

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 58937, 176811, 530433, 766181, 1591299, 2298543, 6895629, 20686887]

約数ペア:

[(1, 20686887), (3, 6895629), (9, 2298543), (13, 1591299), (27, 766181), (39, 530433), (117, 176811), (351, 58937)]