21009000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:220

約数の個数: 128

約数和(自身を含む): 67392000

約数和(自身を除く): 46383000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 47, 50, 60, 75, 94, 100, 120, 125, 141, 149, 150, 188, 200, 235, 250, 282, 298, 300, 375, 376, 447, 470, 500, 564, 596, 600, 705, 745, 750, 894, 940, 1000, 1128, 1175, 1192, 1410, 1490, 1500, 1788, 1880, 2235, 2350, 2820, 2980, 3000, 3525, 3576, 3725, 4470, 4700, 5640, 5875, 5960, 7003, 7050, 7450, 8940, 9400, 11175, 11750, 14006, 14100, 14900, 17625, 17880, 18625, 21009, 22350, 23500, 28012, 28200, 29800, 35015, 35250, 37250, 42018, 44700, 47000, 55875, 56024, 70030, 70500, 74500, 84036, 89400, 105045, 111750, 140060, 141000, 149000, 168072, 175075, 210090, 223500, 280120, 350150, 420180, 447000, 525225, 700300, 840360, 875375, 1050450, 1400600, 1750750, 2100900, 2626125, 3501500, 4201800, 5252250, 7003000, 10504500, 21009000]

約数ペア:

[(1, 21009000), (2, 10504500), (3, 7003000), (4, 5252250), (5, 4201800), (6, 3501500), (8, 2626125), (10, 2100900), (12, 1750750), (15, 1400600), (20, 1050450), (24, 875375), (25, 840360), (30, 700300), (40, 525225), (47, 447000), (50, 420180), (60, 350150), (75, 280120), (94, 223500), (100, 210090), (120, 175075), (125, 168072), (141, 149000), (149, 141000), (150, 140060), (188, 111750), (200, 105045), (235, 89400), (250, 84036), (282, 74500), (298, 70500), (300, 70030), (375, 56024), (376, 55875), (447, 47000), (470, 44700), (500, 42018), (564, 37250), (596, 35250), (600, 35015), (705, 29800), (745, 28200), (750, 28012), (894, 23500), (940, 22350), (1000, 21009), (1128, 18625), (1175, 17880), (1192, 17625), (1410, 14900), (1490, 14100), (1500, 14006), (1788, 11750), (1880, 11175), (2235, 9400), (2350, 8940), (2820, 7450), (2980, 7050), (3000, 7003), (3525, 5960), (3576, 5875), (3725, 5640), (4470, 4700)]