18526563

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 31449600

約数和(自身を除く): 12923037

約数列:

[1, 3, 9, 11, 27, 29, 33, 81, 87, 99, 239, 243, 261, 297, 319, 717, 783, 891, 957, 2151, 2349, 2629, 2673, 2871, 6453, 6931, 7047, 7887, 8613, 19359, 20793, 23661, 25839, 58077, 62379, 70983, 76241, 77517, 187137, 212949, 228723, 561411, 638847, 686169, 1684233, 2058507, 6175521, 18526563]

約数ペア:

[(1, 18526563), (3, 6175521), (9, 2058507), (11, 1684233), (27, 686169), (29, 638847), (33, 561411), (81, 228723), (87, 212949), (99, 187137), (239, 77517), (243, 76241), (261, 70983), (297, 62379), (319, 58077), (717, 25839), (783, 23661), (891, 20793), (957, 19359), (2151, 8613), (2349, 7887), (2629, 7047), (2673, 6931), (2871, 6453)]