19890185

素因数分解:

$5^1\times 7^1\times {\mathrm{739}}^1\times {\mathrm{769}}^1$

素因数の和:1520

約数の個数: 16

約数和(自身を含む): 27350400

約数和(自身を除く): 7460215

約数列:

[1, 5, 7, 35, 739, 769, 3695, 3845, 5173, 5383, 25865, 26915, 568291, 2841455, 3978037, 19890185]

約数ペア:

[(1, 19890185), (5, 3978037), (7, 2841455), (35, 568291), (739, 26915), (769, 25865), (3695, 5383), (3845, 5173)]