21840904

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{367}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 42261120

約数和(自身を除く): 20420216

約数列:

[1, 2, 4, 8, 43, 86, 172, 173, 344, 346, 367, 692, 734, 1384, 1468, 2936, 7439, 14878, 15781, 29756, 31562, 59512, 63124, 63491, 126248, 126982, 253964, 507928, 2730113, 5460226, 10920452, 21840904]

約数ペア:

[(1, 21840904), (2, 10920452), (4, 5460226), (8, 2730113), (43, 507928), (86, 253964), (172, 126982), (173, 126248), (344, 63491), (346, 63124), (367, 59512), (692, 31562), (734, 29756), (1384, 15781), (1468, 14878), (2936, 7439)]