20393612

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:558

約数の個数: 36

約数和(自身を含む): 39044880

約数和(自身を除く): 18651268

約数列:

[1, 2, 4, 19, 29, 38, 58, 76, 116, 361, 487, 551, 722, 974, 1102, 1444, 1948, 2204, 9253, 10469, 14123, 18506, 20938, 28246, 37012, 41876, 56492, 175807, 268337, 351614, 536674, 703228, 1073348, 5098403, 10196806, 20393612]

約数ペア:

[(1, 20393612), (2, 10196806), (4, 5098403), (19, 1073348), (29, 703228), (38, 536674), (58, 351614), (76, 268337), (116, 175807), (361, 56492), (487, 41876), (551, 37012), (722, 28246), (974, 20938), (1102, 18506), (1444, 14123), (1948, 10469), (2204, 9253)]