20049687

素因数分解:

$3^6\times 7^1\times {\mathrm{3929}}^1$

素因数の和:3954

約数の個数: 28

約数和(自身を含む): 34363920

約数和(自身を除く): 14314233

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 3929, 5103, 11787, 27503, 35361, 82509, 106083, 247527, 318249, 742581, 954747, 2227743, 2864241, 6683229, 20049687]

約数ペア:

[(1, 20049687), (3, 6683229), (7, 2864241), (9, 2227743), (21, 954747), (27, 742581), (63, 318249), (81, 247527), (189, 106083), (243, 82509), (567, 35361), (729, 27503), (1701, 11787), (3929, 5103)]