21643300

素因数分解:

$2^2\times 5^2\times 7^3\times {\mathrm{631}}^1$

素因数の和:666

約数の個数: 72

約数和(自身を含む): 54857600

約数和(自身を除く): 33214300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 343, 350, 490, 631, 686, 700, 980, 1225, 1262, 1372, 1715, 2450, 2524, 3155, 3430, 4417, 4900, 6310, 6860, 8575, 8834, 12620, 15775, 17150, 17668, 22085, 30919, 31550, 34300, 44170, 61838, 63100, 88340, 110425, 123676, 154595, 216433, 220850, 309190, 432866, 441700, 618380, 772975, 865732, 1082165, 1545950, 2164330, 3091900, 4328660, 5410825, 10821650, 21643300]

約数ペア:

[(1, 21643300), (2, 10821650), (4, 5410825), (5, 4328660), (7, 3091900), (10, 2164330), (14, 1545950), (20, 1082165), (25, 865732), (28, 772975), (35, 618380), (49, 441700), (50, 432866), (70, 309190), (98, 220850), (100, 216433), (140, 154595), (175, 123676), (196, 110425), (245, 88340), (343, 63100), (350, 61838), (490, 44170), (631, 34300), (686, 31550), (700, 30919), (980, 22085), (1225, 17668), (1262, 17150), (1372, 15775), (1715, 12620), (2450, 8834), (2524, 8575), (3155, 6860), (3430, 6310), (4417, 4900)]