18717184

素因数分解:

$2^9\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:420

約数の個数: 40

約数和(自身を含む): 37810080

約数和(自身を除く): 19092896

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 139, 256, 263, 278, 512, 526, 556, 1052, 1112, 2104, 2224, 4208, 4448, 8416, 8896, 16832, 17792, 33664, 35584, 36557, 67328, 71168, 73114, 134656, 146228, 292456, 584912, 1169824, 2339648, 4679296, 9358592, 18717184]

約数ペア:

[(1, 18717184), (2, 9358592), (4, 4679296), (8, 2339648), (16, 1169824), (32, 584912), (64, 292456), (128, 146228), (139, 134656), (256, 73114), (263, 71168), (278, 67328), (512, 36557), (526, 35584), (556, 33664), (1052, 17792), (1112, 16832), (2104, 8896), (2224, 8416), (4208, 4448)]