21770728

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{9041}}^1$

素因数の和:9097

約数の個数: 32

約数和(自身を含む): 47741760

約数和(自身を除く): 25971032

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 9041, 18082, 36164, 63287, 72328, 126574, 253148, 388763, 506296, 777526, 1555052, 2721341, 3110104, 5442682, 10885364, 21770728]

約数ペア:

[(1, 21770728), (2, 10885364), (4, 5442682), (7, 3110104), (8, 2721341), (14, 1555052), (28, 777526), (43, 506296), (56, 388763), (86, 253148), (172, 126574), (301, 72328), (344, 63287), (602, 36164), (1204, 18082), (2408, 9041)]