21689888

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1433}}^1$

素因数の和:1497

約数の個数: 48

約数和(自身を含む): 47700576

約数和(自身を除く): 26010688

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 43, 44, 86, 88, 172, 176, 344, 352, 473, 688, 946, 1376, 1433, 1892, 2866, 3784, 5732, 7568, 11464, 15136, 15763, 22928, 31526, 45856, 61619, 63052, 123238, 126104, 246476, 252208, 492952, 504416, 677809, 985904, 1355618, 1971808, 2711236, 5422472, 10844944, 21689888]

約数ペア:

[(1, 21689888), (2, 10844944), (4, 5422472), (8, 2711236), (11, 1971808), (16, 1355618), (22, 985904), (32, 677809), (43, 504416), (44, 492952), (86, 252208), (88, 246476), (172, 126104), (176, 123238), (344, 63052), (352, 61619), (473, 45856), (688, 31526), (946, 22928), (1376, 15763), (1433, 15136), (1892, 11464), (2866, 7568), (3784, 5732)]