28183211

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{907}}^1$

素因数の和:1130

約数の個数: 16

約数和(自身を含む): 33821184

約数和(自身を除く): 5637973

約数列:

[1, 7, 23, 161, 193, 907, 1351, 4439, 6349, 20861, 31073, 146027, 175051, 1225357, 4026173, 28183211]

約数ペア:

[(1, 28183211), (7, 4026173), (23, 1225357), (161, 175051), (193, 146027), (907, 31073), (1351, 20861), (4439, 6349)]