21217000

素因数分解:

$2^3\times 5^3\times 7^2\times {\mathrm{433}}^1$

素因数の和:468

約数の個数: 96

約数和(自身を含む): 57886920

約数和(自身を除く): 36669920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 125, 140, 175, 196, 200, 245, 250, 280, 350, 392, 433, 490, 500, 700, 866, 875, 980, 1000, 1225, 1400, 1732, 1750, 1960, 2165, 2450, 3031, 3464, 3500, 4330, 4900, 6062, 6125, 7000, 8660, 9800, 10825, 12124, 12250, 15155, 17320, 21217, 21650, 24248, 24500, 30310, 42434, 43300, 49000, 54125, 60620, 75775, 84868, 86600, 106085, 108250, 121240, 151550, 169736, 212170, 216500, 303100, 378875, 424340, 433000, 530425, 606200, 757750, 848680, 1060850, 1515500, 2121700, 2652125, 3031000, 4243400, 5304250, 10608500, 21217000]

約数ペア:

[(1, 21217000), (2, 10608500), (4, 5304250), (5, 4243400), (7, 3031000), (8, 2652125), (10, 2121700), (14, 1515500), (20, 1060850), (25, 848680), (28, 757750), (35, 606200), (40, 530425), (49, 433000), (50, 424340), (56, 378875), (70, 303100), (98, 216500), (100, 212170), (125, 169736), (140, 151550), (175, 121240), (196, 108250), (200, 106085), (245, 86600), (250, 84868), (280, 75775), (350, 60620), (392, 54125), (433, 49000), (490, 43300), (500, 42434), (700, 30310), (866, 24500), (875, 24248), (980, 21650), (1000, 21217), (1225, 17320), (1400, 15155), (1732, 12250), (1750, 12124), (1960, 10825), (2165, 9800), (2450, 8660), (3031, 7000), (3464, 6125), (3500, 6062), (4330, 4900)]