20786085

素因数分解:

$3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1949}}^1$

素因数の和:2042

約数の個数: 32

約数和(自身を含む): 37440000

約数和(自身を除く): 16653915

約数列:

[1, 3, 5, 9, 15, 27, 45, 79, 135, 237, 395, 711, 1185, 1949, 2133, 3555, 5847, 9745, 10665, 17541, 29235, 52623, 87705, 153971, 263115, 461913, 769855, 1385739, 2309565, 4157217, 6928695, 20786085]

約数ペア:

[(1, 20786085), (3, 6928695), (5, 4157217), (9, 2309565), (15, 1385739), (27, 769855), (45, 461913), (79, 263115), (135, 153971), (237, 87705), (395, 52623), (711, 29235), (1185, 17541), (1949, 10665), (2133, 9745), (3555, 5847)]