20278433

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 26542080

約数和(自身を除く): 6263647

約数列:

[1, 7, 17, 23, 31, 119, 161, 217, 239, 391, 527, 713, 1673, 2737, 3689, 4063, 4991, 5497, 7409, 12121, 28441, 38479, 51863, 84847, 93449, 125953, 170407, 654143, 881671, 1192849, 2896919, 20278433]

約数ペア:

[(1, 20278433), (7, 2896919), (17, 1192849), (23, 881671), (31, 654143), (119, 170407), (161, 125953), (217, 93449), (239, 84847), (391, 51863), (527, 38479), (713, 28441), (1673, 12121), (2737, 7409), (3689, 5497), (4063, 4991)]