3128139

素因数分解:

$3^6\times 7^1\times {\mathrm{613}}^1$

素因数の和:638

約数の個数: 28

約数和(自身を含む): 5368816

約数和(自身を除く): 2240677

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 613, 729, 1701, 1839, 4291, 5103, 5517, 12873, 16551, 38619, 49653, 115857, 148959, 347571, 446877, 1042713, 3128139]

約数ペア:

[(1, 3128139), (3, 1042713), (7, 446877), (9, 347571), (21, 148959), (27, 115857), (63, 49653), (81, 38619), (189, 16551), (243, 12873), (567, 5517), (613, 5103), (729, 4291), (1701, 1839)]