18665847

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6421}}^1$

素因数の和:6463

約数の個数: 24

約数和(自身を含む): 30054960

約数和(自身を除く): 11389113

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 6421, 19263, 57789, 109157, 121999, 327471, 365997, 982413, 1097991, 2073983, 6221949, 18665847]

約数ペア:

[(1, 18665847), (3, 6221949), (9, 2073983), (17, 1097991), (19, 982413), (51, 365997), (57, 327471), (153, 121999), (171, 109157), (323, 57789), (969, 19263), (2907, 6421)]