18917248

素因数分解:

$2^7\times 7^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:555

約数の個数: 64

約数和(自身を含む): 44161920

約数和(自身を除く): 25244672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 128, 172, 224, 301, 344, 448, 491, 602, 688, 896, 982, 1204, 1376, 1964, 2408, 2752, 3437, 3928, 4816, 5504, 6874, 7856, 9632, 13748, 15712, 19264, 21113, 27496, 31424, 38528, 42226, 54992, 62848, 84452, 109984, 147791, 168904, 219968, 295582, 337808, 439936, 591164, 675616, 1182328, 1351232, 2364656, 2702464, 4729312, 9458624, 18917248]

約数ペア:

[(1, 18917248), (2, 9458624), (4, 4729312), (7, 2702464), (8, 2364656), (14, 1351232), (16, 1182328), (28, 675616), (32, 591164), (43, 439936), (56, 337808), (64, 295582), (86, 219968), (112, 168904), (128, 147791), (172, 109984), (224, 84452), (301, 62848), (344, 54992), (448, 42226), (491, 38528), (602, 31424), (688, 27496), (896, 21113), (982, 19264), (1204, 15712), (1376, 13748), (1964, 9632), (2408, 7856), (2752, 6874), (3437, 5504), (3928, 4816)]