21828176

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31727}}^1$

素因数の和:31778

約数の個数: 20

約数和(自身を含む): 43276992

約数和(自身を除く): 21448816

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31727, 63454, 126908, 253816, 507632, 1364261, 2728522, 5457044, 10914088, 21828176]

約数ペア:

[(1, 21828176), (2, 10914088), (4, 5457044), (8, 2728522), (16, 1364261), (43, 507632), (86, 253816), (172, 126908), (344, 63454), (688, 31727)]