19390863

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 29140992

約数和(自身を除く): 9750129

約数列:

[1, 3, 17, 23, 51, 61, 69, 183, 271, 391, 813, 1037, 1173, 1403, 3111, 4209, 4607, 6233, 13821, 16531, 18699, 23851, 49593, 71553, 105961, 281027, 317883, 380213, 843081, 1140639, 6463621, 19390863]

約数ペア:

[(1, 19390863), (3, 6463621), (17, 1140639), (23, 843081), (51, 380213), (61, 317883), (69, 281027), (183, 105961), (271, 71553), (391, 49593), (813, 23851), (1037, 18699), (1173, 16531), (1403, 13821), (3111, 6233), (4209, 4607)]