20711241

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{107}}^2$

素因数の和:290

約数の個数: 24

約数和(自身を含む): 31435040

約数和(自身を除く): 10723799

約数列:

[1, 3, 9, 27, 67, 107, 201, 321, 603, 963, 1809, 2889, 7169, 11449, 21507, 34347, 64521, 103041, 193563, 309123, 767083, 2301249, 6903747, 20711241]

約数ペア:

[(1, 20711241), (3, 6903747), (9, 2301249), (27, 767083), (67, 309123), (107, 193563), (201, 103041), (321, 64521), (603, 34347), (963, 21507), (1809, 11449), (2889, 7169)]