18870505551

素因数分解:

$3^3\times {\mathrm{2909}}^1\times {\mathrm{240257}}^1$

素因数の和:243175

約数の個数: 16

約数和(自身を含む): 27966031200

約数和(自身を除く): 9095525649

約数列:

[1, 3, 9, 27, 2909, 8727, 26181, 78543, 240257, 720771, 2162313, 6486939, 698907613, 2096722839, 6290168517, 18870505551]

約数ペア:

[(1, 18870505551), (3, 6290168517), (9, 2096722839), (27, 698907613), (2909, 6486939), (8727, 2162313), (26181, 720771), (78543, 240257)]