28515333

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 51148800

約数和(自身を除く): 22633467

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 73, 77, 89, 133, 209, 219, 231, 267, 399, 511, 623, 627, 803, 979, 1387, 1463, 1533, 1691, 1869, 2409, 2937, 4161, 4389, 5073, 5621, 6497, 6853, 9709, 11837, 15257, 16863, 18601, 19491, 20559, 29127, 35511, 45479, 45771, 55803, 71467, 106799, 123443, 130207, 136437, 214401, 320397, 370329, 390621, 500269, 864101, 1357873, 1500807, 2592303, 4073619, 9505111, 28515333]

約数ペア:

[(1, 28515333), (3, 9505111), (7, 4073619), (11, 2592303), (19, 1500807), (21, 1357873), (33, 864101), (57, 500269), (73, 390621), (77, 370329), (89, 320397), (133, 214401), (209, 136437), (219, 130207), (231, 123443), (267, 106799), (399, 71467), (511, 55803), (623, 45771), (627, 45479), (803, 35511), (979, 29127), (1387, 20559), (1463, 19491), (1533, 18601), (1691, 16863), (1869, 15257), (2409, 11837), (2937, 9709), (4161, 6853), (4389, 6497), (5073, 5621)]