20851904

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{7577}}^1$

素因数の和:7632

約数の個数: 28

約数和(自身を含む): 42345864

約数和(自身を除く): 21493960

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 172, 344, 688, 1376, 2752, 7577, 15154, 30308, 60616, 121232, 242464, 325811, 484928, 651622, 1303244, 2606488, 5212976, 10425952, 20851904]

約数ペア:

[(1, 20851904), (2, 10425952), (4, 5212976), (8, 2606488), (16, 1303244), (32, 651622), (43, 484928), (64, 325811), (86, 242464), (172, 121232), (344, 60616), (688, 30308), (1376, 15154), (2752, 7577)]