81978009

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{359}}^1\times {\mathrm{739}}^1$

素因数の和:1204

約数の個数: 16

約数和(自身を含む): 110822400

約数和(自身を除く): 28844391

約数列:

[1, 3, 103, 309, 359, 739, 1077, 2217, 36977, 76117, 110931, 228351, 265301, 795903, 27326003, 81978009]

約数ペア:

[(1, 81978009), (3, 27326003), (103, 795903), (309, 265301), (359, 228351), (739, 110931), (1077, 76117), (2217, 36977)]