209151981

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{20051}}^1$

素因数の和:20137

約数の個数: 24

約数和(自身を含む): 323238240

約数和(自身を除く): 114086259

約数列:

[1, 3, 9, 19, 57, 61, 171, 183, 549, 1159, 3477, 10431, 20051, 60153, 180459, 380969, 1142907, 1223111, 3428721, 3669333, 11007999, 23239109, 69717327, 209151981]

約数ペア:

[(1, 209151981), (3, 69717327), (9, 23239109), (19, 11007999), (57, 3669333), (61, 3428721), (171, 1223111), (183, 1142907), (549, 380969), (1159, 180459), (3477, 60153), (10431, 20051)]