21707144

素因数分解:

$2^3\times {\mathrm{853}}^1\times {\mathrm{3181}}^1$

素因数の和:4040

約数の個数: 16

約数和(自身を含む): 40761420

約数和(自身を除く): 19054276

約数列:

[1, 2, 4, 8, 853, 1706, 3181, 3412, 6362, 6824, 12724, 25448, 2713393, 5426786, 10853572, 21707144]

約数ペア:

[(1, 21707144), (2, 10853572), (4, 5426786), (8, 2713393), (853, 25448), (1706, 12724), (3181, 6824), (3412, 6362)]