21379400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{15271}}^1$

素因数の和:15294

約数の個数: 48

約数和(自身を含む): 56811840

約数和(自身を除く): 35432440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 15271, 30542, 61084, 76355, 106897, 122168, 152710, 213794, 305420, 381775, 427588, 534485, 610840, 763550, 855176, 1068970, 1527100, 2137940, 2672425, 3054200, 4275880, 5344850, 10689700, 21379400]

約数ペア:

[(1, 21379400), (2, 10689700), (4, 5344850), (5, 4275880), (7, 3054200), (8, 2672425), (10, 2137940), (14, 1527100), (20, 1068970), (25, 855176), (28, 763550), (35, 610840), (40, 534485), (50, 427588), (56, 381775), (70, 305420), (100, 213794), (140, 152710), (175, 122168), (200, 106897), (280, 76355), (350, 61084), (700, 30542), (1400, 15271)]