81509491

素因数分解:

$7^3\times {\mathrm{71}}^1\times {\mathrm{3347}}^1$

素因数の和:3439

約数の個数: 16

約数和(自身を含む): 96422400

約数和(自身を除く): 14912909

約数列:

[1, 7, 49, 71, 343, 497, 3347, 3479, 23429, 24353, 164003, 237637, 1148021, 1663459, 11644213, 81509491]

約数ペア:

[(1, 81509491), (7, 11644213), (49, 1663459), (71, 1148021), (343, 237637), (497, 164003), (3347, 24353), (3479, 23429)]