19515988

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{5077}}^1$

素因数の和:5143

約数の個数: 18

約数和(自身を含む): 35297178

約数和(自身を除く): 15781190

約数列:

[1, 2, 4, 31, 62, 124, 961, 1922, 3844, 5077, 10154, 20308, 157387, 314774, 629548, 4878997, 9757994, 19515988]

約数ペア:

[(1, 19515988), (2, 9757994), (4, 4878997), (31, 629548), (62, 314774), (124, 157387), (961, 20308), (1922, 10154), (3844, 5077)]