21513014768

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2705359}}^1$

素因数の和:2705445

約数の個数: 40

約数和(自身を含む): 48306908160

約数和(自身を除く): 26793893392

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 3976, 7952, 2705359, 5410718, 10821436, 18937513, 21642872, 37875026, 43285744, 75750052, 151500104, 192080489, 303000208, 384160978, 768321956, 1344563423, 1536643912, 2689126846, 3073287824, 5378253692, 10756507384, 21513014768]

約数ペア:

[(1, 21513014768), (2, 10756507384), (4, 5378253692), (7, 3073287824), (8, 2689126846), (14, 1536643912), (16, 1344563423), (28, 768321956), (56, 384160978), (71, 303000208), (112, 192080489), (142, 151500104), (284, 75750052), (497, 43285744), (568, 37875026), (994, 21642872), (1136, 18937513), (1988, 10821436), (3976, 5410718), (7952, 2705359)]