20639248

素因数分解:

$2^4\times 7^1\times {\mathrm{184279}}^1$

素因数の和:184294

約数の個数: 20

約数和(自身を含む): 45701440

約数和(自身を除く): 25062192

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 184279, 368558, 737116, 1289953, 1474232, 2579906, 2948464, 5159812, 10319624, 20639248]

約数ペア:

[(1, 20639248), (2, 10319624), (4, 5159812), (7, 2948464), (8, 2579906), (14, 1474232), (16, 1289953), (28, 737116), (56, 368558), (112, 184279)]