21387000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{7129}}^1$

素因数の和:7153

約数の個数: 64

約数和(自身を含む): 66736800

約数和(自身を除く): 45349800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 750, 1000, 1500, 3000, 7129, 14258, 21387, 28516, 35645, 42774, 57032, 71290, 85548, 106935, 142580, 171096, 178225, 213870, 285160, 356450, 427740, 534675, 712900, 855480, 891125, 1069350, 1425800, 1782250, 2138700, 2673375, 3564500, 4277400, 5346750, 7129000, 10693500, 21387000]

約数ペア:

[(1, 21387000), (2, 10693500), (3, 7129000), (4, 5346750), (5, 4277400), (6, 3564500), (8, 2673375), (10, 2138700), (12, 1782250), (15, 1425800), (20, 1069350), (24, 891125), (25, 855480), (30, 712900), (40, 534675), (50, 427740), (60, 356450), (75, 285160), (100, 213870), (120, 178225), (125, 171096), (150, 142580), (200, 106935), (250, 85548), (300, 71290), (375, 57032), (500, 42774), (600, 35645), (750, 28516), (1000, 21387), (1500, 14258), (3000, 7129)]