21162184

素因数分解:

$2^3\times {\mathrm{509}}^1\times {\mathrm{5197}}^1$

素因数の和:5712

約数の個数: 16

約数和(自身を含む): 39764700

約数和(自身を除く): 18602516

約数列:

[1, 2, 4, 8, 509, 1018, 2036, 4072, 5197, 10394, 20788, 41576, 2645273, 5290546, 10581092, 21162184]

約数ペア:

[(1, 21162184), (2, 10581092), (4, 5290546), (8, 2645273), (509, 41576), (1018, 20788), (2036, 10394), (4072, 5197)]