19288863

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 32831136

約数和(自身を除く): 13542273

約数列:

[1, 3, 9, 11, 17, 33, 51, 73, 99, 153, 157, 187, 219, 471, 561, 657, 803, 1241, 1413, 1683, 1727, 2409, 2669, 3723, 5181, 7227, 8007, 11169, 11461, 13651, 15543, 24021, 29359, 34383, 40953, 88077, 103149, 122859, 126071, 194837, 264231, 378213, 584511, 1134639, 1753533, 2143207, 6429621, 19288863]

約数ペア:

[(1, 19288863), (3, 6429621), (9, 2143207), (11, 1753533), (17, 1134639), (33, 584511), (51, 378213), (73, 264231), (99, 194837), (153, 126071), (157, 122859), (187, 103149), (219, 88077), (471, 40953), (561, 34383), (657, 29359), (803, 24021), (1241, 15543), (1413, 13651), (1683, 11461), (1727, 11169), (2409, 8007), (2669, 7227), (3723, 5181)]