20679345

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10687}}^1$

素因数の和:10741

約数の個数: 24

約数和(自身を含む): 36681216

約数和(自身を除く): 16001871

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10687, 32061, 53435, 96183, 160305, 459541, 480915, 1378623, 2297705, 4135869, 6893115, 20679345]

約数ペア:

[(1, 20679345), (3, 6893115), (5, 4135869), (9, 2297705), (15, 1378623), (43, 480915), (45, 459541), (129, 160305), (215, 96183), (387, 53435), (645, 32061), (1935, 10687)]