18870896

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{599}}^1$

素因数の和:797

約数の個数: 40

約数和(自身を含む): 40176000

約数和(自身を除く): 21305104

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 179, 358, 599, 716, 1198, 1432, 1969, 2396, 2864, 3938, 4792, 6589, 7876, 9584, 13178, 15752, 26356, 31504, 52712, 105424, 107221, 214442, 428884, 857768, 1179431, 1715536, 2358862, 4717724, 9435448, 18870896]

約数ペア:

[(1, 18870896), (2, 9435448), (4, 4717724), (8, 2358862), (11, 1715536), (16, 1179431), (22, 857768), (44, 428884), (88, 214442), (176, 107221), (179, 105424), (358, 52712), (599, 31504), (716, 26356), (1198, 15752), (1432, 13178), (1969, 9584), (2396, 7876), (2864, 6589), (3938, 4792)]