19125909

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{907}}^1$

素因数の和:998

約数の個数: 32

約数和(自身を含む): 31380480

約数和(自身を除く): 12254571

約数列:

[1, 3, 9, 11, 27, 33, 71, 99, 213, 297, 639, 781, 907, 1917, 2343, 2721, 7029, 8163, 9977, 21087, 24489, 29931, 64397, 89793, 193191, 269379, 579573, 708367, 1738719, 2125101, 6375303, 19125909]

約数ペア:

[(1, 19125909), (3, 6375303), (9, 2125101), (11, 1738719), (27, 708367), (33, 579573), (71, 269379), (99, 193191), (213, 89793), (297, 64397), (639, 29931), (781, 24489), (907, 21087), (1917, 9977), (2343, 8163), (2721, 7029)]