21557067

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{21841}}^1$

素因数の和:21898

約数の個数: 16

約数和(自身を含む): 33549312

約数和(自身を除く): 11992245

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 21841, 65523, 152887, 458661, 1026527, 3079581, 7185689, 21557067]

約数ペア:

[(1, 21557067), (3, 7185689), (7, 3079581), (21, 1026527), (47, 458661), (141, 152887), (329, 65523), (987, 21841)]