21991622144

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{2526611}}^1$

素因数の和:2526646

約数の個数: 40

約数和(自身を含む): 46525033368

約数和(自身を除く): 24533411224

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 1088, 2176, 4352, 8704, 2526611, 5053222, 10106444, 20212888, 40425776, 42952387, 80851552, 85904774, 161703104, 171809548, 323406208, 343619096, 646812416, 687238192, 1293624832, 1374476384, 2748952768, 5497905536, 10995811072, 21991622144]

約数ペア:

[(1, 21991622144), (2, 10995811072), (4, 5497905536), (8, 2748952768), (16, 1374476384), (17, 1293624832), (32, 687238192), (34, 646812416), (64, 343619096), (68, 323406208), (128, 171809548), (136, 161703104), (256, 85904774), (272, 80851552), (512, 42952387), (544, 40425776), (1088, 20212888), (2176, 10106444), (4352, 5053222), (8704, 2526611)]