21213885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18367}}^1$

素因数の和:18393

約数の個数: 32

約数和(自身を含む): 42319872

約数和(自身を除く): 21105987

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 18367, 55101, 91835, 128569, 202037, 275505, 385707, 606111, 642845, 1010185, 1414259, 1928535, 3030555, 4242777, 7071295, 21213885]

約数ペア:

[(1, 21213885), (3, 7071295), (5, 4242777), (7, 3030555), (11, 1928535), (15, 1414259), (21, 1010185), (33, 642845), (35, 606111), (55, 385707), (77, 275505), (105, 202037), (165, 128569), (231, 91835), (385, 55101), (1155, 18367)]