21036976

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{30577}}^1$

素因数の和:30628

約数の個数: 20

約数和(自身を含む): 41708392

約数和(自身を除く): 20671416

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 30577, 61154, 122308, 244616, 489232, 1314811, 2629622, 5259244, 10518488, 21036976]

約数ペア:

[(1, 21036976), (2, 10518488), (4, 5259244), (8, 2629622), (16, 1314811), (43, 489232), (86, 244616), (172, 122308), (344, 61154), (688, 30577)]