21551824

素因数分解:

$2^4\times 7^1\times {\mathrm{337}}^1\times {\mathrm{571}}^1$

素因数の和:923

約数の個数: 40

約数和(自身を含む): 47947328

約数和(自身を除く): 26395504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 337, 571, 674, 1142, 1348, 2284, 2359, 2696, 3997, 4568, 4718, 5392, 7994, 9136, 9436, 15988, 18872, 31976, 37744, 63952, 192427, 384854, 769708, 1346989, 1539416, 2693978, 3078832, 5387956, 10775912, 21551824]

約数ペア:

[(1, 21551824), (2, 10775912), (4, 5387956), (7, 3078832), (8, 2693978), (14, 1539416), (16, 1346989), (28, 769708), (56, 384854), (112, 192427), (337, 63952), (571, 37744), (674, 31976), (1142, 18872), (1348, 15988), (2284, 9436), (2359, 9136), (2696, 7994), (3997, 5392), (4568, 4718)]