21563290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1$

素因数の和:587

約数の個数: 64

約数和(自身を含む): 48291840

約数和(自身を除く): 26728550

約数列:

[1, 2, 5, 7, 10, 14, 19, 31, 35, 38, 62, 70, 95, 133, 155, 190, 217, 266, 310, 434, 523, 589, 665, 1046, 1085, 1178, 1330, 2170, 2615, 2945, 3661, 4123, 5230, 5890, 7322, 8246, 9937, 16213, 18305, 19874, 20615, 32426, 36610, 41230, 49685, 69559, 81065, 99370, 113491, 139118, 162130, 226982, 308047, 347795, 567455, 616094, 695590, 1134910, 1540235, 2156329, 3080470, 4312658, 10781645, 21563290]

約数ペア:

[(1, 21563290), (2, 10781645), (5, 4312658), (7, 3080470), (10, 2156329), (14, 1540235), (19, 1134910), (31, 695590), (35, 616094), (38, 567455), (62, 347795), (70, 308047), (95, 226982), (133, 162130), (155, 139118), (190, 113491), (217, 99370), (266, 81065), (310, 69559), (434, 49685), (523, 41230), (589, 36610), (665, 32426), (1046, 20615), (1085, 19874), (1178, 18305), (1330, 16213), (2170, 9937), (2615, 8246), (2945, 7322), (3661, 5890), (4123, 5230)]