18212908

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2161}}^1$

素因数の和:2222

約数の個数: 36

約数和(自身を含む): 37956072

約数和(自身を除く): 19743164

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 2161, 4214, 4322, 8428, 8644, 15127, 30254, 60508, 92923, 105889, 185846, 211778, 371692, 423556, 650461, 1300922, 2601844, 4553227, 9106454, 18212908]

約数ペア:

[(1, 18212908), (2, 9106454), (4, 4553227), (7, 2601844), (14, 1300922), (28, 650461), (43, 423556), (49, 371692), (86, 211778), (98, 185846), (172, 105889), (196, 92923), (301, 60508), (602, 30254), (1204, 15127), (2107, 8644), (2161, 8428), (4214, 4322)]