28791161

素因数分解:

$7^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1\times {\mathrm{211}}^1$

素因数の和:512

約数の個数: 16

約数和(自身を含む): 33560448

約数和(自身を除く): 4769287

約数列:

[1, 7, 101, 193, 211, 707, 1351, 1477, 19493, 21311, 40723, 136451, 149177, 285061, 4113023, 28791161]

約数ペア:

[(1, 28791161), (7, 4113023), (101, 285061), (193, 149177), (211, 136451), (707, 40723), (1351, 21311), (1477, 19493)]