20804805

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{66047}}^1$

素因数の和:66065

約数の個数: 24

約数和(自身を含む): 41213952

約数和(自身を除く): 20409147

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 66047, 198141, 330235, 462329, 594423, 990705, 1386987, 2311645, 2972115, 4160961, 6934935, 20804805]

約数ペア:

[(1, 20804805), (3, 6934935), (5, 4160961), (7, 2972115), (9, 2311645), (15, 1386987), (21, 990705), (35, 594423), (45, 462329), (63, 330235), (105, 198141), (315, 66047)]