21063628

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{503}}^1$

素因数の和:574

約数の個数: 36

約数和(自身を含む): 40325040

約数和(自身を除く): 19261412

約数列:

[1, 2, 4, 19, 29, 38, 58, 76, 116, 361, 503, 551, 722, 1006, 1102, 1444, 2012, 2204, 9557, 10469, 14587, 19114, 20938, 29174, 38228, 41876, 58348, 181583, 277153, 363166, 554306, 726332, 1108612, 5265907, 10531814, 21063628]

約数ペア:

[(1, 21063628), (2, 10531814), (4, 5265907), (19, 1108612), (29, 726332), (38, 554306), (58, 363166), (76, 277153), (116, 181583), (361, 58348), (503, 41876), (551, 38228), (722, 29174), (1006, 20938), (1102, 19114), (1444, 14587), (2012, 10469), (2204, 9557)]