20145657

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{20411}}^1$

素因数の和:20468

約数の個数: 16

約数和(自身を含む): 31352832

約数和(自身を除く): 11207175

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 20411, 61233, 142877, 428631, 959317, 2877951, 6715219, 20145657]

約数ペア:

[(1, 20145657), (3, 6715219), (7, 2877951), (21, 959317), (47, 428631), (141, 142877), (329, 61233), (987, 20411)]