25406143

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 32514048

約数和(自身を除く): 7107905

約数列:

[1, 7, 17, 31, 71, 97, 119, 217, 497, 527, 679, 1207, 1649, 2201, 3007, 3689, 6887, 8449, 11543, 15407, 21049, 37417, 48209, 51119, 117079, 213497, 261919, 357833, 819553, 1494479, 3629449, 25406143]

約数ペア:

[(1, 25406143), (7, 3629449), (17, 1494479), (31, 819553), (71, 357833), (97, 261919), (119, 213497), (217, 117079), (497, 51119), (527, 48209), (679, 37417), (1207, 21049), (1649, 15407), (2201, 11543), (3007, 8449), (3689, 6887)]