777777309

素因数分解:

$3^4\times {\mathrm{1613}}^1\times {\mathrm{5953}}^1$

素因数の和:7578

約数の個数: 20

約数和(自身を含む): 1162780476

約数和(自身を除く): 385003167

約数列:

[1, 3, 9, 27, 81, 1613, 4839, 5953, 14517, 17859, 43551, 53577, 130653, 160731, 482193, 9602189, 28806567, 86419701, 259259103, 777777309]

約数ペア:

[(1, 777777309), (3, 259259103), (9, 86419701), (27, 28806567), (81, 9602189), (1613, 482193), (4839, 160731), (5953, 130653), (14517, 53577), (17859, 43551)]