19990816

素因数分解:

$2^5\times {\mathrm{127}}^1\times {\mathrm{4919}}^1$

素因数の和:5056

約数の個数: 24

約数和(自身を含む): 39674880

約数和(自身を除く): 19684064

約数列:

[1, 2, 4, 8, 16, 32, 127, 254, 508, 1016, 2032, 4064, 4919, 9838, 19676, 39352, 78704, 157408, 624713, 1249426, 2498852, 4997704, 9995408, 19990816]

約数ペア:

[(1, 19990816), (2, 9995408), (4, 4997704), (8, 2498852), (16, 1249426), (32, 624713), (127, 157408), (254, 78704), (508, 39352), (1016, 19676), (2032, 9838), (4064, 4919)]