21253089

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{463}}^1$

素因数の和:597

約数の個数: 32

約数和(自身を含む): 33675264

約数和(自身を除く): 12422175

約数列:

[1, 3, 11, 13, 33, 39, 107, 143, 321, 429, 463, 1177, 1389, 1391, 3531, 4173, 5093, 6019, 15279, 15301, 18057, 45903, 49541, 66209, 148623, 198627, 544951, 644033, 1634853, 1932099, 7084363, 21253089]

約数ペア:

[(1, 21253089), (3, 7084363), (11, 1932099), (13, 1634853), (33, 644033), (39, 544951), (107, 198627), (143, 148623), (321, 66209), (429, 49541), (463, 45903), (1177, 18057), (1389, 15301), (1391, 15279), (3531, 6019), (4173, 5093)]