18971344

素因数分解:

$2^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1499}}^1$

素因数の和:1627

約数の個数: 40

約数和(自身を含む): 42408000

約数和(自身を除く): 23436656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 113, 226, 452, 791, 904, 1499, 1582, 1808, 2998, 3164, 5996, 6328, 10493, 11992, 12656, 20986, 23984, 41972, 83944, 167888, 169387, 338774, 677548, 1185709, 1355096, 2371418, 2710192, 4742836, 9485672, 18971344]

約数ペア:

[(1, 18971344), (2, 9485672), (4, 4742836), (7, 2710192), (8, 2371418), (14, 1355096), (16, 1185709), (28, 677548), (56, 338774), (112, 169387), (113, 167888), (226, 83944), (452, 41972), (791, 23984), (904, 20986), (1499, 12656), (1582, 11992), (1808, 10493), (2998, 6328), (3164, 5996)]