21644889

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 34364160

約数和(自身を除く): 12719271

約数列:

[1, 3, 7, 21, 37, 89, 111, 259, 267, 313, 623, 777, 939, 1869, 2191, 3293, 6573, 9879, 11581, 23051, 27857, 34743, 69153, 81067, 83571, 194999, 243201, 584997, 1030709, 3092127, 7214963, 21644889]

約数ペア:

[(1, 21644889), (3, 7214963), (7, 3092127), (21, 1030709), (37, 584997), (89, 243201), (111, 194999), (259, 83571), (267, 81067), (313, 69153), (623, 34743), (777, 27857), (939, 23051), (1869, 11581), (2191, 9879), (3293, 6573)]