21081639

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{1103}}^1$

素因数の和:1406

約数の個数: 16

約数和(自身を含む): 29463552

約数和(自身を除く): 8381913

約数列:

[1, 3, 23, 69, 277, 831, 1103, 3309, 6371, 19113, 25369, 76107, 305531, 916593, 7027213, 21081639]

約数ペア:

[(1, 21081639), (3, 7027213), (23, 916593), (69, 305531), (277, 76107), (831, 25369), (1103, 19113), (3309, 6371)]