20674276

素因数分解:

$2^2\times 7^2\times {\mathrm{313}}^1\times {\mathrm{337}}^1$

素因数の和:668

約数の個数: 36

約数和(自身を含む): 42346668

約数和(自身を除く): 21672392

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 313, 337, 626, 674, 1252, 1348, 2191, 2359, 4382, 4718, 8764, 9436, 15337, 16513, 30674, 33026, 61348, 66052, 105481, 210962, 421924, 738367, 1476734, 2953468, 5168569, 10337138, 20674276]

約数ペア:

[(1, 20674276), (2, 10337138), (4, 5168569), (7, 2953468), (14, 1476734), (28, 738367), (49, 421924), (98, 210962), (196, 105481), (313, 66052), (337, 61348), (626, 33026), (674, 30674), (1252, 16513), (1348, 15337), (2191, 9436), (2359, 8764), (4382, 4718)]