21014980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150107}}^1$

素因数の和:150123

約数の個数: 24

約数和(自身を含む): 50436288

約数和(自身を除く): 29421308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150107, 300214, 600428, 750535, 1050749, 1501070, 2101498, 3002140, 4202996, 5253745, 10507490, 21014980]

約数ペア:

[(1, 21014980), (2, 10507490), (4, 5253745), (5, 4202996), (7, 3002140), (10, 2101498), (14, 1501070), (20, 1050749), (28, 750535), (35, 600428), (70, 300214), (140, 150107)]