28128373

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{3001}}^1$

素因数の和:3124

約数の個数: 16

約数和(自身を含む): 34967296

約数和(自身を除く): 6838923

約数列:

[1, 7, 13, 91, 103, 721, 1339, 3001, 9373, 21007, 39013, 273091, 309103, 2163721, 4018339, 28128373]

約数ペア:

[(1, 28128373), (7, 4018339), (13, 2163721), (91, 309103), (103, 273091), (721, 39013), (1339, 21007), (3001, 9373)]