21003850

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{8573}}^1$

素因数の和:8599

約数の個数: 36

約数和(自身を含む): 45450774

約数和(自身を除く): 24446924

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 490, 1225, 2450, 8573, 17146, 42865, 60011, 85730, 120022, 214325, 300055, 420077, 428650, 600110, 840154, 1500275, 2100385, 3000550, 4200770, 10501925, 21003850]

約数ペア:

[(1, 21003850), (2, 10501925), (5, 4200770), (7, 3000550), (10, 2100385), (14, 1500275), (25, 840154), (35, 600110), (49, 428650), (50, 420077), (70, 300055), (98, 214325), (175, 120022), (245, 85730), (350, 60011), (490, 42865), (1225, 17146), (2450, 8573)]