21189000

素因数分解:

$2^3\times 3^1\times 5^3\times 7^1\times {\mathrm{1009}}^1$

素因数の和:1040

約数の個数: 128

約数和(自身を含む): 75628800

約数和(自身を除く): 54439800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 125, 140, 150, 168, 175, 200, 210, 250, 280, 300, 350, 375, 420, 500, 525, 600, 700, 750, 840, 875, 1000, 1009, 1050, 1400, 1500, 1750, 2018, 2100, 2625, 3000, 3027, 3500, 4036, 4200, 5045, 5250, 6054, 7000, 7063, 8072, 10090, 10500, 12108, 14126, 15135, 20180, 21000, 21189, 24216, 25225, 28252, 30270, 35315, 40360, 42378, 50450, 56504, 60540, 70630, 75675, 84756, 100900, 105945, 121080, 126125, 141260, 151350, 169512, 176575, 201800, 211890, 252250, 282520, 302700, 353150, 378375, 423780, 504500, 529725, 605400, 706300, 756750, 847560, 882875, 1009000, 1059450, 1412600, 1513500, 1765750, 2118900, 2648625, 3027000, 3531500, 4237800, 5297250, 7063000, 10594500, 21189000]

約数ペア:

[(1, 21189000), (2, 10594500), (3, 7063000), (4, 5297250), (5, 4237800), (6, 3531500), (7, 3027000), (8, 2648625), (10, 2118900), (12, 1765750), (14, 1513500), (15, 1412600), (20, 1059450), (21, 1009000), (24, 882875), (25, 847560), (28, 756750), (30, 706300), (35, 605400), (40, 529725), (42, 504500), (50, 423780), (56, 378375), (60, 353150), (70, 302700), (75, 282520), (84, 252250), (100, 211890), (105, 201800), (120, 176575), (125, 169512), (140, 151350), (150, 141260), (168, 126125), (175, 121080), (200, 105945), (210, 100900), (250, 84756), (280, 75675), (300, 70630), (350, 60540), (375, 56504), (420, 50450), (500, 42378), (525, 40360), (600, 35315), (700, 30270), (750, 28252), (840, 25225), (875, 24216), (1000, 21189), (1009, 21000), (1050, 20180), (1400, 15135), (1500, 14126), (1750, 12108), (2018, 10500), (2100, 10090), (2625, 8072), (3000, 7063), (3027, 7000), (3500, 6054), (4036, 5250), (4200, 5045)]