215548641

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{521}}^1$

素因数の和:747

約数の個数: 64

約数和(自身を含む): 400896000

約数和(自身を除く): 185347359

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 199, 231, 297, 521, 597, 693, 1393, 1563, 1791, 2079, 2189, 3647, 4179, 4689, 5373, 5731, 6567, 10941, 12537, 14067, 15323, 17193, 19701, 32823, 37611, 40117, 45969, 51579, 59103, 98469, 103679, 120351, 137907, 154737, 311037, 361053, 413721, 725753, 933111, 1083159, 1140469, 2177259, 2799333, 3421407, 6531777, 7983283, 10264221, 19595331, 23949849, 30792663, 71849547, 215548641]

約数ペア:

[(1, 215548641), (3, 71849547), (7, 30792663), (9, 23949849), (11, 19595331), (21, 10264221), (27, 7983283), (33, 6531777), (63, 3421407), (77, 2799333), (99, 2177259), (189, 1140469), (199, 1083159), (231, 933111), (297, 725753), (521, 413721), (597, 361053), (693, 311037), (1393, 154737), (1563, 137907), (1791, 120351), (2079, 103679), (2189, 98469), (3647, 59103), (4179, 51579), (4689, 45969), (5373, 40117), (5731, 37611), (6567, 32823), (10941, 19701), (12537, 17193), (14067, 15323)]