21111170

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{26723}}^1$

素因数の和:26809

約数の個数: 16

約数和(自身を含む): 38482560

約数和(自身を除く): 17371390

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 26723, 53446, 133615, 267230, 2111117, 4222234, 10555585, 21111170]

約数ペア:

[(1, 21111170), (2, 10555585), (5, 4222234), (10, 2111117), (79, 267230), (158, 133615), (395, 53446), (790, 26723)]