21740705

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{599}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 10400095

約数列:

[1, 5, 7, 17, 35, 61, 85, 119, 305, 427, 595, 599, 1037, 2135, 2995, 4193, 5185, 7259, 10183, 20965, 36295, 36539, 50915, 71281, 182695, 255773, 356405, 621163, 1278865, 3105815, 4348141, 21740705]

約数ペア:

[(1, 21740705), (5, 4348141), (7, 3105815), (17, 1278865), (35, 621163), (61, 356405), (85, 255773), (119, 182695), (305, 71281), (427, 50915), (595, 36539), (599, 36295), (1037, 20965), (2135, 10183), (2995, 7259), (4193, 5185)]