21919465

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1\times {\mathrm{379}}^1$

素因数の和:696

約数の個数: 16

約数和(自身を含む): 27086400

約数和(自身を除く): 5166935

約数列:

[1, 5, 43, 215, 269, 379, 1345, 1895, 11567, 16297, 57835, 81485, 101951, 509755, 4383893, 21919465]

約数ペア:

[(1, 21919465), (5, 4383893), (43, 509755), (215, 101951), (269, 81485), (379, 57835), (1345, 16297), (1895, 11567)]