19993216

素因数分解:

$2^7\times {\mathrm{109}}^1\times {\mathrm{1433}}^1$

素因数の和:1556

約数の個数: 32

約数和(自身を含む): 40223700

約数和(自身を除く): 20230484

約数列:

[1, 2, 4, 8, 16, 32, 64, 109, 128, 218, 436, 872, 1433, 1744, 2866, 3488, 5732, 6976, 11464, 13952, 22928, 45856, 91712, 156197, 183424, 312394, 624788, 1249576, 2499152, 4998304, 9996608, 19993216]

約数ペア:

[(1, 19993216), (2, 9996608), (4, 4998304), (8, 2499152), (16, 1249576), (32, 624788), (64, 312394), (109, 183424), (128, 156197), (218, 91712), (436, 45856), (872, 22928), (1433, 13952), (1744, 11464), (2866, 6976), (3488, 5732)]