21512384

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{7817}}^1$

素因数の和:7872

約数の個数: 28

約数和(自身を含む): 43686984

約数和(自身を除く): 22174600

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 172, 344, 688, 1376, 2752, 7817, 15634, 31268, 62536, 125072, 250144, 336131, 500288, 672262, 1344524, 2689048, 5378096, 10756192, 21512384]

約数ペア:

[(1, 21512384), (2, 10756192), (4, 5378096), (8, 2689048), (16, 1344524), (32, 672262), (43, 500288), (64, 336131), (86, 250144), (172, 125072), (344, 62536), (688, 31268), (1376, 15634), (2752, 7817)]