21228327

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{409}}^1$

素因数の和:567

約数の個数: 24

約数和(自身を含む): 31553600

約数和(自身を除く): 10325273

約数列:

[1, 3, 9, 73, 79, 219, 237, 409, 657, 711, 1227, 3681, 5767, 17301, 29857, 32311, 51903, 89571, 96933, 268713, 290799, 2358703, 7076109, 21228327]

約数ペア:

[(1, 21228327), (3, 7076109), (9, 2358703), (73, 290799), (79, 268713), (219, 96933), (237, 89571), (409, 51903), (657, 32311), (711, 29857), (1227, 17301), (3681, 5767)]