18709299

素因数分解:

$3^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 33965568

約数和(自身を除く): 15256269

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 243, 357, 459, 567, 647, 1071, 1377, 1701, 1941, 3213, 4131, 4529, 5823, 9639, 10999, 13587, 17469, 28917, 32997, 40761, 52407, 76993, 98991, 122283, 157221, 230979, 296973, 366849, 692937, 890919, 1100547, 2078811, 2672757, 6236433, 18709299]

約数ペア:

[(1, 18709299), (3, 6236433), (7, 2672757), (9, 2078811), (17, 1100547), (21, 890919), (27, 692937), (51, 366849), (63, 296973), (81, 230979), (119, 157221), (153, 122283), (189, 98991), (243, 76993), (357, 52407), (459, 40761), (567, 32997), (647, 28917), (1071, 17469), (1377, 13587), (1701, 10999), (1941, 9639), (3213, 5823), (4131, 4529)]