820031877

素因数分解:

$3^3\times 7^1\times {\mathrm{211}}^1\times {\mathrm{20563}}^1$

素因数の和:20790

約数の個数: 32

約数和(自身を含む): 1395061760

約数和(自身を除く): 575029883

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 211, 633, 1477, 1899, 4431, 5697, 13293, 20563, 39879, 61689, 143941, 185067, 431823, 555201, 1295469, 3886407, 4338793, 13016379, 30371551, 39049137, 91114653, 117147411, 273343959, 820031877]

約数ペア:

[(1, 820031877), (3, 273343959), (7, 117147411), (9, 91114653), (21, 39049137), (27, 30371551), (63, 13016379), (189, 4338793), (211, 3886407), (633, 1295469), (1477, 555201), (1899, 431823), (4431, 185067), (5697, 143941), (13293, 61689), (20563, 39879)]