21007000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{3001}}^1$

素因数の和:3029

約数の個数: 64

約数和(自身を含む): 56197440

約数和(自身を除く): 35190440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 700, 875, 1000, 1400, 1750, 3001, 3500, 6002, 7000, 12004, 15005, 21007, 24008, 30010, 42014, 60020, 75025, 84028, 105035, 120040, 150050, 168056, 210070, 300100, 375125, 420140, 525175, 600200, 750250, 840280, 1050350, 1500500, 2100700, 2625875, 3001000, 4201400, 5251750, 10503500, 21007000]

約数ペア:

[(1, 21007000), (2, 10503500), (4, 5251750), (5, 4201400), (7, 3001000), (8, 2625875), (10, 2100700), (14, 1500500), (20, 1050350), (25, 840280), (28, 750250), (35, 600200), (40, 525175), (50, 420140), (56, 375125), (70, 300100), (100, 210070), (125, 168056), (140, 150050), (175, 120040), (200, 105035), (250, 84028), (280, 75025), (350, 60020), (500, 42014), (700, 30010), (875, 24008), (1000, 21007), (1400, 15005), (1750, 12004), (3001, 7000), (3500, 6002)]