21760328

素因数分解:

$2^3\times {\mathrm{431}}^1\times {\mathrm{6311}}^1$

素因数の和:6748

約数の個数: 16

約数和(自身を含む): 40901760

約数和(自身を除く): 19141432

約数列:

[1, 2, 4, 8, 431, 862, 1724, 3448, 6311, 12622, 25244, 50488, 2720041, 5440082, 10880164, 21760328]

約数ペア:

[(1, 21760328), (2, 10880164), (4, 5440082), (8, 2720041), (431, 50488), (862, 25244), (1724, 12622), (3448, 6311)]