19787264

素因数分解:

$2^9\times 7^1\times {\mathrm{5521}}^1$

素因数の和:5546

約数の個数: 40

約数和(自身を含む): 45192048

約数和(自身を除く): 25404784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 5521, 11042, 22084, 38647, 44168, 77294, 88336, 154588, 176672, 309176, 353344, 618352, 706688, 1236704, 1413376, 2473408, 2826752, 4946816, 9893632, 19787264]

約数ペア:

[(1, 19787264), (2, 9893632), (4, 4946816), (7, 2826752), (8, 2473408), (14, 1413376), (16, 1236704), (28, 706688), (32, 618352), (56, 353344), (64, 309176), (112, 176672), (128, 154588), (224, 88336), (256, 77294), (448, 44168), (512, 38647), (896, 22084), (1792, 11042), (3584, 5521)]