21563296

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{15671}}^1$

素因数の和:15724

約数の個数: 24

約数和(自身を含む): 43442784

約数和(自身を除く): 21879488

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 15671, 31342, 62684, 125368, 250736, 501472, 673853, 1347706, 2695412, 5390824, 10781648, 21563296]

約数ペア:

[(1, 21563296), (2, 10781648), (4, 5390824), (8, 2695412), (16, 1347706), (32, 673853), (43, 501472), (86, 250736), (172, 125368), (344, 62684), (688, 31342), (1376, 15671)]