15781887

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 26956800

約数和(自身を除く): 11174913

約数列:

[1, 3, 9, 11, 23, 29, 33, 69, 87, 99, 207, 239, 253, 261, 319, 667, 717, 759, 957, 2001, 2151, 2277, 2629, 2871, 5497, 6003, 6931, 7337, 7887, 16491, 20793, 22011, 23661, 49473, 60467, 62379, 66033, 76241, 159413, 181401, 228723, 478239, 544203, 686169, 1434717, 1753543, 5260629, 15781887]

約数ペア:

[(1, 15781887), (3, 5260629), (9, 1753543), (11, 1434717), (23, 686169), (29, 544203), (33, 478239), (69, 228723), (87, 181401), (99, 159413), (207, 76241), (239, 66033), (253, 62379), (261, 60467), (319, 49473), (667, 23661), (717, 22011), (759, 20793), (957, 16491), (2001, 7887), (2151, 7337), (2277, 6931), (2629, 6003), (2871, 5497)]