19039712

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:291

約数の個数: 48

約数和(自身を含む): 39018672

約数和(自身を除く): 19978960

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 101, 137, 172, 202, 274, 344, 404, 548, 688, 808, 1096, 1376, 1616, 2192, 3232, 4343, 4384, 5891, 8686, 11782, 13837, 17372, 23564, 27674, 34744, 47128, 55348, 69488, 94256, 110696, 138976, 188512, 221392, 442784, 594991, 1189982, 2379964, 4759928, 9519856, 19039712]

約数ペア:

[(1, 19039712), (2, 9519856), (4, 4759928), (8, 2379964), (16, 1189982), (32, 594991), (43, 442784), (86, 221392), (101, 188512), (137, 138976), (172, 110696), (202, 94256), (274, 69488), (344, 55348), (404, 47128), (548, 34744), (688, 27674), (808, 23564), (1096, 17372), (1376, 13837), (1616, 11782), (2192, 8686), (3232, 5891), (4343, 4384)]