21888363

素因数分解:

$3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1621}}^1$

素因数の和:2274

約数の個数: 16

約数和(自身を含む): 33426176

約数和(自身を除く): 11537813

約数列:

[1, 3, 7, 21, 643, 1621, 1929, 4501, 4863, 11347, 13503, 34041, 1042303, 3126909, 7296121, 21888363]

約数ペア:

[(1, 21888363), (3, 7296121), (7, 3126909), (21, 1042303), (643, 34041), (1621, 13503), (1929, 11347), (4501, 4863)]