21384699

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{307}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 34062336

約数和(自身を除く): 12677637

約数列:

[1, 3, 7, 21, 31, 93, 107, 217, 307, 321, 651, 749, 921, 2149, 2247, 3317, 6447, 9517, 9951, 23219, 28551, 32849, 66619, 69657, 98547, 199857, 229943, 689829, 1018319, 3054957, 7128233, 21384699]

約数ペア:

[(1, 21384699), (3, 7128233), (7, 3054957), (21, 1018319), (31, 689829), (93, 229943), (107, 199857), (217, 98547), (307, 69657), (321, 66619), (651, 32849), (749, 28551), (921, 23219), (2149, 9951), (2247, 9517), (3317, 6447)]