18653409

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{2647}}^1$

素因数の和:2691

約数の個数: 24

約数和(自身を含む): 28916160

約数和(自身を除く): 10262751

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 783, 2349, 2647, 7047, 7941, 23823, 71469, 76763, 214407, 230289, 643221, 690867, 2072601, 6217803, 18653409]

約数ペア:

[(1, 18653409), (3, 6217803), (9, 2072601), (27, 690867), (29, 643221), (81, 230289), (87, 214407), (243, 76763), (261, 71469), (783, 23823), (2349, 7941), (2647, 7047)]