18743291

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2659}}^1$

素因数の和:2738

約数の個数: 16

約数和(自身を含む): 22982400

約数和(自身を除く): 4239109

約数列:

[1, 7, 19, 53, 133, 371, 1007, 2659, 7049, 18613, 50521, 140927, 353647, 986489, 2677613, 18743291]

約数ペア:

[(1, 18743291), (7, 2677613), (19, 986489), (53, 353647), (133, 140927), (371, 50521), (1007, 18613), (2659, 7049)]