20886964

素因数分解:

$2^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1879}}^1$

素因数の和:2287

約数の個数: 24

約数和(自身を含む): 41901440

約数和(自身を除く): 21014476

約数列:

[1, 2, 4, 7, 14, 28, 397, 794, 1588, 1879, 2779, 3758, 5558, 7516, 11116, 13153, 26306, 52612, 745963, 1491926, 2983852, 5221741, 10443482, 20886964]

約数ペア:

[(1, 20886964), (2, 10443482), (4, 5221741), (7, 2983852), (14, 1491926), (28, 745963), (397, 52612), (794, 26306), (1588, 13153), (1879, 11116), (2779, 7516), (3758, 5558)]