19946516

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{5189}}^1$

素因数の和:5255

約数の個数: 18

約数和(自身を含む): 36075690

約数和(自身を除く): 16129174

約数列:

[1, 2, 4, 31, 62, 124, 961, 1922, 3844, 5189, 10378, 20756, 160859, 321718, 643436, 4986629, 9973258, 19946516]

約数ペア:

[(1, 19946516), (2, 9973258), (4, 4986629), (31, 643436), (62, 321718), (124, 160859), (961, 20756), (1922, 10378), (3844, 5189)]