18743528

素因数分解:

$2^3\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 37957920

約数和(自身を除く): 19214392

約数列:

[1, 2, 4, 8, 23, 43, 46, 86, 92, 103, 172, 184, 206, 344, 412, 529, 824, 989, 1058, 1978, 2116, 2369, 3956, 4232, 4429, 4738, 7912, 8858, 9476, 17716, 18952, 22747, 35432, 45494, 54487, 90988, 101867, 108974, 181976, 203734, 217948, 407468, 435896, 814936, 2342941, 4685882, 9371764, 18743528]

約数ペア:

[(1, 18743528), (2, 9371764), (4, 4685882), (8, 2342941), (23, 814936), (43, 435896), (46, 407468), (86, 217948), (92, 203734), (103, 181976), (172, 108974), (184, 101867), (206, 90988), (344, 54487), (412, 45494), (529, 35432), (824, 22747), (989, 18952), (1058, 17716), (1978, 9476), (2116, 8858), (2369, 7912), (3956, 4738), (4232, 4429)]