21508788

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{256057}}^1$

素因数の和:256071

約数の個数: 24

約数和(自身を含む): 57356992

約数和(自身を除く): 35848204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 256057, 512114, 768171, 1024228, 1536342, 1792399, 3072684, 3584798, 5377197, 7169596, 10754394, 21508788]

約数ペア:

[(1, 21508788), (2, 10754394), (3, 7169596), (4, 5377197), (6, 3584798), (7, 3072684), (12, 1792399), (14, 1536342), (21, 1024228), (28, 768171), (42, 512114), (84, 256057)]