21668048

素因数分解:

$2^4\times {\mathrm{277}}^1\times {\mathrm{4889}}^1$

素因数の和:5174

約数の個数: 20

約数和(自身を含む): 42142020

約数和(自身を除く): 20473972

約数列:

[1, 2, 4, 8, 16, 277, 554, 1108, 2216, 4432, 4889, 9778, 19556, 39112, 78224, 1354253, 2708506, 5417012, 10834024, 21668048]

約数ペア:

[(1, 21668048), (2, 10834024), (4, 5417012), (8, 2708506), (16, 1354253), (277, 78224), (554, 39112), (1108, 19556), (2216, 9778), (4432, 4889)]