21516848

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{10589}}^1$

素因数の和:10724

約数の個数: 20

約数和(自身を含む): 42021120

約数和(自身を除く): 20504272

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 10589, 21178, 42356, 84712, 169424, 1344803, 2689606, 5379212, 10758424, 21516848]

約数ペア:

[(1, 21516848), (2, 10758424), (4, 5379212), (8, 2689606), (16, 1344803), (127, 169424), (254, 84712), (508, 42356), (1016, 21178), (2032, 10589)]