21320889

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1\times {\mathrm{739}}^1$

素因数の和:964

約数の個数: 16

約数和(自身を含む): 29126400

約数和(自身を除く): 7805511

約数列:

[1, 3, 59, 163, 177, 489, 739, 2217, 9617, 28851, 43601, 120457, 130803, 361371, 7106963, 21320889]

約数ペア:

[(1, 21320889), (3, 7106963), (59, 361371), (163, 130803), (177, 120457), (489, 43601), (739, 28851), (2217, 9617)]