21199500

素因数分解:

$2^2\times 3^2\times 5^3\times 7^1\times {\mathrm{673}}^1$

素因数の和:705

約数の個数: 144

約数和(自身を含む): 76544832

約数和(自身を除く): 55345332

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 125, 126, 140, 150, 175, 180, 210, 225, 250, 252, 300, 315, 350, 375, 420, 450, 500, 525, 630, 673, 700, 750, 875, 900, 1050, 1125, 1260, 1346, 1500, 1575, 1750, 2019, 2100, 2250, 2625, 2692, 3150, 3365, 3500, 4038, 4500, 4711, 5250, 6057, 6300, 6730, 7875, 8076, 9422, 10095, 10500, 12114, 13460, 14133, 15750, 16825, 18844, 20190, 23555, 24228, 28266, 30285, 31500, 33650, 40380, 42399, 47110, 50475, 56532, 60570, 67300, 70665, 84125, 84798, 94220, 100950, 117775, 121140, 141330, 151425, 168250, 169596, 201900, 211995, 235550, 252375, 282660, 302850, 336500, 353325, 423990, 471100, 504750, 588875, 605700, 706650, 757125, 847980, 1009500, 1059975, 1177750, 1413300, 1514250, 1766625, 2119950, 2355500, 3028500, 3533250, 4239900, 5299875, 7066500, 10599750, 21199500]

約数ペア:

[(1, 21199500), (2, 10599750), (3, 7066500), (4, 5299875), (5, 4239900), (6, 3533250), (7, 3028500), (9, 2355500), (10, 2119950), (12, 1766625), (14, 1514250), (15, 1413300), (18, 1177750), (20, 1059975), (21, 1009500), (25, 847980), (28, 757125), (30, 706650), (35, 605700), (36, 588875), (42, 504750), (45, 471100), (50, 423990), (60, 353325), (63, 336500), (70, 302850), (75, 282660), (84, 252375), (90, 235550), (100, 211995), (105, 201900), (125, 169596), (126, 168250), (140, 151425), (150, 141330), (175, 121140), (180, 117775), (210, 100950), (225, 94220), (250, 84798), (252, 84125), (300, 70665), (315, 67300), (350, 60570), (375, 56532), (420, 50475), (450, 47110), (500, 42399), (525, 40380), (630, 33650), (673, 31500), (700, 30285), (750, 28266), (875, 24228), (900, 23555), (1050, 20190), (1125, 18844), (1260, 16825), (1346, 15750), (1500, 14133), (1575, 13460), (1750, 12114), (2019, 10500), (2100, 10095), (2250, 9422), (2625, 8076), (2692, 7875), (3150, 6730), (3365, 6300), (3500, 6057), (4038, 5250), (4500, 4711)]