19984689584

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{11459111}}^1$

素因数の和:11459228

約数の個数: 20

約数和(自身を含む): 39075571920

約数和(自身を除く): 19090882336

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 11459111, 22918222, 45836444, 91672888, 183345776, 1249043099, 2498086198, 4996172396, 9992344792, 19984689584]

約数ペア:

[(1, 19984689584), (2, 9992344792), (4, 4996172396), (8, 2498086198), (16, 1249043099), (109, 183345776), (218, 91672888), (436, 45836444), (872, 22918222), (1744, 11459111)]