18665073

素因数分解:

$3^5\times 7^1\times {\mathrm{10973}}^1$

素因数の和:10995

約数の個数: 24

約数和(自身を含む): 31956288

約数和(自身を除く): 13291215

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 10973, 32919, 76811, 98757, 230433, 296271, 691299, 888813, 2073897, 2666439, 6221691, 18665073]

約数ペア:

[(1, 18665073), (3, 6221691), (7, 2666439), (9, 2073897), (21, 888813), (27, 691299), (63, 296271), (81, 230433), (189, 98757), (243, 76811), (567, 32919), (1701, 10973)]