208048743

素因数分解:

$3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:314

約数の個数: 80

約数和(自身を含む): 374313984

約数和(自身を除く): 166265241

約数列:

[1, 3, 7, 9, 21, 27, 37, 47, 63, 81, 111, 141, 189, 211, 259, 329, 333, 423, 567, 633, 777, 987, 999, 1269, 1477, 1739, 1899, 2331, 2961, 2997, 3807, 4431, 5217, 5697, 6993, 7807, 8883, 9917, 12173, 13293, 15651, 17091, 20979, 23421, 26649, 29751, 36519, 39879, 46953, 54649, 69419, 70263, 89253, 109557, 119637, 140859, 163947, 208257, 210789, 267759, 328671, 366929, 491841, 624771, 632367, 803277, 986013, 1100787, 1475523, 1874313, 2568503, 3302361, 4426569, 5622939, 7705509, 9907083, 23116527, 29721249, 69349581, 208048743]

約数ペア:

[(1, 208048743), (3, 69349581), (7, 29721249), (9, 23116527), (21, 9907083), (27, 7705509), (37, 5622939), (47, 4426569), (63, 3302361), (81, 2568503), (111, 1874313), (141, 1475523), (189, 1100787), (211, 986013), (259, 803277), (329, 632367), (333, 624771), (423, 491841), (567, 366929), (633, 328671), (777, 267759), (987, 210789), (999, 208257), (1269, 163947), (1477, 140859), (1739, 119637), (1899, 109557), (2331, 89253), (2961, 70263), (2997, 69419), (3807, 54649), (4431, 46953), (5217, 39879), (5697, 36519), (6993, 29751), (7807, 26649), (8883, 23421), (9917, 20979), (12173, 17091), (13293, 15651)]