21578872

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{6317}}^1$

素因数の和:6391

約数の個数: 32

約数和(自身を含む): 47005920

約数和(自身を除く): 25427048

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 6317, 12634, 25268, 44219, 50536, 88438, 176876, 353752, 385337, 770674, 1541348, 2697359, 3082696, 5394718, 10789436, 21578872]

約数ペア:

[(1, 21578872), (2, 10789436), (4, 5394718), (7, 3082696), (8, 2697359), (14, 1541348), (28, 770674), (56, 385337), (61, 353752), (122, 176876), (244, 88438), (427, 50536), (488, 44219), (854, 25268), (1708, 12634), (3416, 6317)]