18665439

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{599}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 10364961

約数列:

[1, 3, 13, 17, 39, 47, 51, 141, 221, 599, 611, 663, 799, 1797, 1833, 2397, 7787, 10183, 10387, 23361, 28153, 30549, 31161, 84459, 132379, 365989, 397137, 478601, 1097967, 1435803, 6221813, 18665439]

約数ペア:

[(1, 18665439), (3, 6221813), (13, 1435803), (17, 1097967), (39, 478601), (47, 397137), (51, 365989), (141, 132379), (221, 84459), (599, 31161), (611, 30549), (663, 28153), (799, 23361), (1797, 10387), (1833, 10183), (2397, 7787)]