18017073

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{509}}^1$

素因数の和:563

約数の個数: 40

約数和(自身を含む): 29620800

約数和(自身を除く): 11603727

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 81, 171, 207, 437, 509, 513, 621, 1311, 1527, 1539, 1863, 3933, 4581, 9671, 11707, 11799, 13743, 29013, 35121, 35397, 41229, 87039, 105363, 222433, 261117, 316089, 667299, 783351, 948267, 2001897, 6005691, 18017073]

約数ペア:

[(1, 18017073), (3, 6005691), (9, 2001897), (19, 948267), (23, 783351), (27, 667299), (57, 316089), (69, 261117), (81, 222433), (171, 105363), (207, 87039), (437, 41229), (509, 35397), (513, 35121), (621, 29013), (1311, 13743), (1527, 11799), (1539, 11707), (1863, 9671), (3933, 4581)]