78420923

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{643}}^1$

素因数の和:807

約数の個数: 24

約数和(自身を含む): 96909120

約数和(自身を除く): 18488197

約数列:

[1, 7, 19, 49, 131, 133, 643, 917, 931, 2489, 4501, 6419, 12217, 17423, 31507, 84233, 85519, 121961, 589631, 598633, 1600427, 4127417, 11202989, 78420923]

約数ペア:

[(1, 78420923), (7, 11202989), (19, 4127417), (49, 1600427), (131, 598633), (133, 589631), (643, 121961), (917, 85519), (931, 84233), (2489, 31507), (4501, 17423), (6419, 12217)]