20286049

素因数分解:

$7^5\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:123

約数の個数: 24

約数和(自身を含む): 25411968

約数和(自身を除く): 5125919

約数列:

[1, 7, 17, 49, 71, 119, 343, 497, 833, 1207, 2401, 3479, 5831, 8449, 16807, 24353, 40817, 59143, 170471, 285719, 414001, 1193297, 2898007, 20286049]

約数ペア:

[(1, 20286049), (7, 2898007), (17, 1193297), (49, 414001), (71, 285719), (119, 170471), (343, 59143), (497, 40817), (833, 24353), (1207, 16807), (2401, 8449), (3479, 5831)]