21817396

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{521}}^1$

素因数の和:592

約数の個数: 36

約数和(自身を含む): 41765220

約数和(自身を除く): 19947824

約数列:

[1, 2, 4, 19, 29, 38, 58, 76, 116, 361, 521, 551, 722, 1042, 1102, 1444, 2084, 2204, 9899, 10469, 15109, 19798, 20938, 30218, 39596, 41876, 60436, 188081, 287071, 376162, 574142, 752324, 1148284, 5454349, 10908698, 21817396]

約数ペア:

[(1, 21817396), (2, 10908698), (4, 5454349), (19, 1148284), (29, 752324), (38, 574142), (58, 376162), (76, 287071), (116, 188081), (361, 60436), (521, 41876), (551, 39596), (722, 30218), (1042, 20938), (1102, 19798), (1444, 15109), (2084, 10469), (2204, 9899)]