19918448

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113173}}^1$

素因数の和:113192

約数の個数: 20

約数和(自身を含む): 42100728

約数和(自身を除く): 22182280

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 113173, 226346, 452692, 905384, 1244903, 1810768, 2489806, 4979612, 9959224, 19918448]

約数ペア:

[(1, 19918448), (2, 9959224), (4, 4979612), (8, 2489806), (11, 1810768), (16, 1244903), (22, 905384), (44, 452692), (88, 226346), (176, 113173)]