21899781

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:394

約数の個数: 32

約数和(自身を含む): 33815040

約数和(自身を除く): 11915259

約数列:

[1, 3, 9, 27, 41, 73, 123, 219, 271, 369, 657, 813, 1107, 1971, 2439, 2993, 7317, 8979, 11111, 19783, 26937, 33333, 59349, 80811, 99999, 178047, 299997, 534141, 811103, 2433309, 7299927, 21899781]

約数ペア:

[(1, 21899781), (3, 7299927), (9, 2433309), (27, 811103), (41, 534141), (73, 299997), (123, 178047), (219, 99999), (271, 80811), (369, 59349), (657, 33333), (813, 26937), (1107, 19783), (1971, 11111), (2439, 8979), (2993, 7317)]