16989085

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2549}}^1$

素因数の和:2628

約数の個数: 16

約数和(自身を含む): 21542400

約数和(自身を除く): 4553315

約数列:

[1, 5, 31, 43, 155, 215, 1333, 2549, 6665, 12745, 79019, 109607, 395095, 548035, 3397817, 16989085]

約数ペア:

[(1, 16989085), (5, 3397817), (31, 548035), (43, 395095), (155, 109607), (215, 79019), (1333, 12745), (2549, 6665)]