19707568

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{39733}}^1$

素因数の和:39772

約数の個数: 20

約数和(自身を含む): 39416128

約数和(自身を除く): 19708560

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 39733, 79466, 158932, 317864, 635728, 1231723, 2463446, 4926892, 9853784, 19707568]

約数ペア:

[(1, 19707568), (2, 9853784), (4, 4926892), (8, 2463446), (16, 1231723), (31, 635728), (62, 317864), (124, 158932), (248, 79466), (496, 39733)]