18960021

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{18979}}^1$

素因数の和:19025

約数の個数: 16

約数和(自身を含む): 28849600

約数和(自身を除く): 9889579

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 18979, 56937, 170811, 512433, 702223, 2106669, 6320007, 18960021]

約数ペア:

[(1, 18960021), (3, 6320007), (9, 2106669), (27, 702223), (37, 512433), (111, 170811), (333, 56937), (999, 18979)]