19904486

素因数分解:

$2^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{1031}}^1$

素因数の和:1244

約数の個数: 24

約数和(自身を含む): 34941456

約数和(自身を除く): 15036970

約数列:

[1, 2, 7, 14, 49, 98, 197, 394, 1031, 1379, 2062, 2758, 7217, 9653, 14434, 19306, 50519, 101038, 203107, 406214, 1421749, 2843498, 9952243, 19904486]

約数ペア:

[(1, 19904486), (2, 9952243), (7, 2843498), (14, 1421749), (49, 406214), (98, 203107), (197, 101038), (394, 50519), (1031, 19306), (1379, 14434), (2062, 9653), (2758, 7217)]