16680573

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:136

約数の個数: 80

約数和(自身を含む): 32091136

約数和(自身を除く): 15410563

約数列:

[1, 3, 7, 9, 13, 21, 27, 31, 39, 63, 73, 81, 91, 93, 117, 189, 217, 219, 273, 279, 351, 403, 511, 567, 651, 657, 819, 837, 949, 1053, 1209, 1533, 1953, 1971, 2263, 2457, 2511, 2821, 2847, 3627, 4599, 5859, 5913, 6643, 6789, 7371, 8463, 8541, 10881, 13797, 15841, 17577, 19929, 20367, 25389, 25623, 29419, 32643, 41391, 47523, 59787, 61101, 76167, 76869, 88257, 142569, 179361, 183303, 205933, 228501, 264771, 427707, 538083, 617799, 794313, 1283121, 1853397, 2382939, 5560191, 16680573]

約数ペア:

[(1, 16680573), (3, 5560191), (7, 2382939), (9, 1853397), (13, 1283121), (21, 794313), (27, 617799), (31, 538083), (39, 427707), (63, 264771), (73, 228501), (81, 205933), (91, 183303), (93, 179361), (117, 142569), (189, 88257), (217, 76869), (219, 76167), (273, 61101), (279, 59787), (351, 47523), (403, 41391), (511, 32643), (567, 29419), (651, 25623), (657, 25389), (819, 20367), (837, 19929), (949, 17577), (1053, 15841), (1209, 13797), (1533, 10881), (1953, 8541), (1971, 8463), (2263, 7371), (2457, 6789), (2511, 6643), (2821, 5913), (2847, 5859), (3627, 4599)]