28457163

素因数分解:

$3^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1619}}^1$

素因数の和:1669

約数の個数: 40

約数和(自身を含む): 50181120

約数和(自身を除く): 21723957

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 189, 217, 279, 567, 651, 837, 1619, 1953, 2511, 4857, 5859, 11333, 14571, 17577, 33999, 43713, 50189, 101997, 131139, 150567, 305991, 351323, 451701, 917973, 1053969, 1355103, 3161907, 4065309, 9485721, 28457163]

約数ペア:

[(1, 28457163), (3, 9485721), (7, 4065309), (9, 3161907), (21, 1355103), (27, 1053969), (31, 917973), (63, 451701), (81, 351323), (93, 305991), (189, 150567), (217, 131139), (279, 101997), (567, 50189), (651, 43713), (837, 33999), (1619, 17577), (1953, 14571), (2511, 11333), (4857, 5859)]