18904864

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1249}}^1$

素因数の和:1313

約数の個数: 48

約数和(自身を含む): 41580000

約数和(自身を除く): 22675136

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 43, 44, 86, 88, 172, 176, 344, 352, 473, 688, 946, 1249, 1376, 1892, 2498, 3784, 4996, 7568, 9992, 13739, 15136, 19984, 27478, 39968, 53707, 54956, 107414, 109912, 214828, 219824, 429656, 439648, 590777, 859312, 1181554, 1718624, 2363108, 4726216, 9452432, 18904864]

約数ペア:

[(1, 18904864), (2, 9452432), (4, 4726216), (8, 2363108), (11, 1718624), (16, 1181554), (22, 859312), (32, 590777), (43, 439648), (44, 429656), (86, 219824), (88, 214828), (172, 109912), (176, 107414), (344, 54956), (352, 53707), (473, 39968), (688, 27478), (946, 19984), (1249, 15136), (1376, 13739), (1892, 9992), (2498, 7568), (3784, 4996)]