28123881

素因数分解:

$3^1\times {\mathrm{29}}^2\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 39633984

約数和(自身を除く): 11510103

約数列:

[1, 3, 29, 71, 87, 157, 213, 471, 841, 2059, 2523, 4553, 6177, 11147, 13659, 33441, 59711, 132037, 179133, 323263, 396111, 969789, 9374627, 28123881]

約数ペア:

[(1, 28123881), (3, 9374627), (29, 969789), (71, 396111), (87, 323263), (157, 179133), (213, 132037), (471, 59711), (841, 33441), (2059, 13659), (2523, 11147), (4553, 6177)]