21364456

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{277}}^1\times {\mathrm{311}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 41633280

約数和(自身を除く): 20268824

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 277, 311, 554, 622, 1108, 1244, 2216, 2488, 8587, 9641, 17174, 19282, 34348, 38564, 68696, 77128, 86147, 172294, 344588, 689176, 2670557, 5341114, 10682228, 21364456]

約数ペア:

[(1, 21364456), (2, 10682228), (4, 5341114), (8, 2670557), (31, 689176), (62, 344588), (124, 172294), (248, 86147), (277, 77128), (311, 68696), (554, 38564), (622, 34348), (1108, 19282), (1244, 17174), (2216, 9641), (2488, 8587)]