21435328

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{7789}}^1$

素因数の和:7844

約数の個数: 28

約数和(自身を含む): 43530520

約数和(自身を除く): 22095192

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 172, 344, 688, 1376, 2752, 7789, 15578, 31156, 62312, 124624, 249248, 334927, 498496, 669854, 1339708, 2679416, 5358832, 10717664, 21435328]

約数ペア:

[(1, 21435328), (2, 10717664), (4, 5358832), (8, 2679416), (16, 1339708), (32, 669854), (43, 498496), (64, 334927), (86, 249248), (172, 124624), (344, 62312), (688, 31156), (1376, 15578), (2752, 7789)]