205411815

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{217367}}^1$

素因数の和:217388

約数の個数: 32

約数和(自身を含む): 417346560

約数和(自身を除く): 211934745

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 217367, 652101, 1086835, 1521569, 1956303, 3260505, 4564707, 5868909, 7607845, 9781515, 13694121, 22823535, 29344545, 41082363, 68470605, 205411815]

約数ペア:

[(1, 205411815), (3, 68470605), (5, 41082363), (7, 29344545), (9, 22823535), (15, 13694121), (21, 9781515), (27, 7607845), (35, 5868909), (45, 4564707), (63, 3260505), (105, 1956303), (135, 1521569), (189, 1086835), (315, 652101), (945, 217367)]