20519816

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{150881}}^1$

素因数の和:150904

約数の個数: 16

約数和(自身を含む): 40738140

約数和(自身を除く): 20218324

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 150881, 301762, 603524, 1207048, 2564977, 5129954, 10259908, 20519816]

約数ペア:

[(1, 20519816), (2, 10259908), (4, 5129954), (8, 2564977), (17, 1207048), (34, 603524), (68, 301762), (136, 150881)]