19747088

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{17383}}^1$

素因数の和:17462

約数の個数: 20

約数和(自身を含む): 38801088

約数和(自身を除く): 19054000

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 17383, 34766, 69532, 139064, 278128, 1234193, 2468386, 4936772, 9873544, 19747088]

約数ペア:

[(1, 19747088), (2, 9873544), (4, 4936772), (8, 2468386), (16, 1234193), (71, 278128), (142, 139064), (284, 69532), (568, 34766), (1136, 17383)]