21389900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{30557}}^1$

素因数の和:30578

約数の個数: 36

約数和(自身を含む): 53048688

約数和(自身を除く): 31658788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 30557, 61114, 122228, 152785, 213899, 305570, 427798, 611140, 763925, 855596, 1069495, 1527850, 2138990, 3055700, 4277980, 5347475, 10694950, 21389900]

約数ペア:

[(1, 21389900), (2, 10694950), (4, 5347475), (5, 4277980), (7, 3055700), (10, 2138990), (14, 1527850), (20, 1069495), (25, 855596), (28, 763925), (35, 611140), (50, 427798), (70, 305570), (100, 213899), (140, 152785), (175, 122228), (350, 61114), (700, 30557)]