20512487974

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{1049}}^1\times {\mathrm{80803}}^1$

素因数の和:81876

約数の個数: 24

約数和(自身を含む): 33852835800

約数和(自身を除く): 13340347826

約数列:

[1, 2, 11, 22, 121, 242, 1049, 2098, 11539, 23078, 80803, 126929, 161606, 253858, 888833, 1777666, 9777163, 19554326, 84762347, 169524694, 932385817, 1864771634, 10256243987, 20512487974]

約数ペア:

[(1, 20512487974), (2, 10256243987), (11, 1864771634), (22, 932385817), (121, 169524694), (242, 84762347), (1049, 19554326), (2098, 9777163), (11539, 1777666), (23078, 888833), (80803, 253858), (126929, 161606)]