18004952

素因数分解:

$2^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1997}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 40998960

約数和(自身を除く): 22994008

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 49, 56, 92, 98, 161, 184, 196, 322, 392, 644, 1127, 1288, 1997, 2254, 3994, 4508, 7988, 9016, 13979, 15976, 27958, 45931, 55916, 91862, 97853, 111832, 183724, 195706, 321517, 367448, 391412, 643034, 782824, 1286068, 2250619, 2572136, 4501238, 9002476, 18004952]

約数ペア:

[(1, 18004952), (2, 9002476), (4, 4501238), (7, 2572136), (8, 2250619), (14, 1286068), (23, 782824), (28, 643034), (46, 391412), (49, 367448), (56, 321517), (92, 195706), (98, 183724), (161, 111832), (184, 97853), (196, 91862), (322, 55916), (392, 45931), (644, 27958), (1127, 15976), (1288, 13979), (1997, 9016), (2254, 7988), (3994, 4508)]