20781284163

素因数分解:

$3^1\times {\mathrm{107}}^1\times {\mathrm{3821}}^1\times {\mathrm{16943}}^1$

素因数の和:20874

約数の個数: 16

約数和(自身を含む): 27976306176

約数和(自身を除く): 7195022013

約数列:

[1, 3, 107, 321, 3821, 11463, 16943, 50829, 408847, 1226541, 1812901, 5438703, 64739203, 194217609, 6927094721, 20781284163]

約数ペア:

[(1, 20781284163), (3, 6927094721), (107, 194217609), (321, 64739203), (3821, 5438703), (11463, 1812901), (16943, 1226541), (50829, 408847)]