18980864

素因数分解:

$2^{13}\times 7^1\times {\mathrm{331}}^1$

素因数の和:364

約数の個数: 56

約数和(自身を含む): 43513248

約数和(自身を除く): 24532384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 331, 448, 512, 662, 896, 1024, 1324, 1792, 2048, 2317, 2648, 3584, 4096, 4634, 5296, 7168, 8192, 9268, 10592, 14336, 18536, 21184, 28672, 37072, 42368, 57344, 74144, 84736, 148288, 169472, 296576, 338944, 593152, 677888, 1186304, 1355776, 2372608, 2711552, 4745216, 9490432, 18980864]

約数ペア:

[(1, 18980864), (2, 9490432), (4, 4745216), (7, 2711552), (8, 2372608), (14, 1355776), (16, 1186304), (28, 677888), (32, 593152), (56, 338944), (64, 296576), (112, 169472), (128, 148288), (224, 84736), (256, 74144), (331, 57344), (448, 42368), (512, 37072), (662, 28672), (896, 21184), (1024, 18536), (1324, 14336), (1792, 10592), (2048, 9268), (2317, 8192), (2648, 7168), (3584, 5296), (4096, 4634)]