18205857

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1543}}^1$

素因数の和:1594

約数の個数: 32

約数和(自身を含む): 29644800

約数和(自身を除く): 11438943

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 171, 207, 437, 513, 621, 1311, 1543, 3933, 4629, 11799, 13887, 29317, 35489, 41661, 87951, 106467, 263853, 319401, 674291, 791559, 958203, 2022873, 6068619, 18205857]

約数ペア:

[(1, 18205857), (3, 6068619), (9, 2022873), (19, 958203), (23, 791559), (27, 674291), (57, 319401), (69, 263853), (171, 106467), (207, 87951), (437, 41661), (513, 35489), (621, 29317), (1311, 13887), (1543, 11799), (3933, 4629)]