21279334

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{379}}^1\times {\mathrm{419}}^1$

素因数の和:867

約数の個数: 16

約数和(自身を含む): 32558400

約数和(自身を除く): 11279066

約数列:

[1, 2, 67, 134, 379, 419, 758, 838, 25393, 28073, 50786, 56146, 158801, 317602, 10639667, 21279334]

約数ペア:

[(1, 21279334), (2, 10639667), (67, 317602), (134, 158801), (379, 56146), (419, 50786), (758, 28073), (838, 25393)]