18720848

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{2383}}^1$

素因数の和:2882

約数の個数: 20

約数和(自身を含む): 36360768

約数和(自身を除く): 17639920

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 2383, 3928, 4766, 7856, 9532, 19064, 38128, 1170053, 2340106, 4680212, 9360424, 18720848]

約数ペア:

[(1, 18720848), (2, 9360424), (4, 4680212), (8, 2340106), (16, 1170053), (491, 38128), (982, 19064), (1964, 9532), (2383, 7856), (3928, 4766)]