18859456

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:162

約数の個数: 112

約数和(自身を含む): 48280320

約数和(自身を除く): 29420864

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 43, 44, 56, 64, 77, 86, 88, 89, 112, 154, 172, 176, 178, 224, 301, 308, 344, 352, 356, 448, 473, 602, 616, 623, 688, 704, 712, 946, 979, 1204, 1232, 1246, 1376, 1424, 1892, 1958, 2408, 2464, 2492, 2752, 2848, 3311, 3784, 3827, 3916, 4816, 4928, 4984, 5696, 6622, 6853, 7568, 7654, 7832, 9632, 9968, 13244, 13706, 15136, 15308, 15664, 19264, 19936, 26488, 26789, 27412, 30272, 30616, 31328, 39872, 42097, 52976, 53578, 54824, 61232, 62656, 84194, 105952, 107156, 109648, 122464, 168388, 211904, 214312, 219296, 244928, 294679, 336776, 428624, 438592, 589358, 673552, 857248, 1178716, 1347104, 1714496, 2357432, 2694208, 4714864, 9429728, 18859456]

約数ペア:

[(1, 18859456), (2, 9429728), (4, 4714864), (7, 2694208), (8, 2357432), (11, 1714496), (14, 1347104), (16, 1178716), (22, 857248), (28, 673552), (32, 589358), (43, 438592), (44, 428624), (56, 336776), (64, 294679), (77, 244928), (86, 219296), (88, 214312), (89, 211904), (112, 168388), (154, 122464), (172, 109648), (176, 107156), (178, 105952), (224, 84194), (301, 62656), (308, 61232), (344, 54824), (352, 53578), (356, 52976), (448, 42097), (473, 39872), (602, 31328), (616, 30616), (623, 30272), (688, 27412), (704, 26789), (712, 26488), (946, 19936), (979, 19264), (1204, 15664), (1232, 15308), (1246, 15136), (1376, 13706), (1424, 13244), (1892, 9968), (1958, 9632), (2408, 7832), (2464, 7654), (2492, 7568), (2752, 6853), (2848, 6622), (3311, 5696), (3784, 4984), (3827, 4928), (3916, 4816)]