16640883

素因数分解:

$3^7\times 7^1\times {\mathrm{1087}}^1$

素因数の和:1115

約数の個数: 32

約数和(自身を含む): 28549120

約数和(自身を除く): 11908237

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1087, 1701, 2187, 3261, 5103, 7609, 9783, 15309, 22827, 29349, 68481, 88047, 205443, 264141, 616329, 792423, 1848987, 2377269, 5546961, 16640883]

約数ペア:

[(1, 16640883), (3, 5546961), (7, 2377269), (9, 1848987), (21, 792423), (27, 616329), (63, 264141), (81, 205443), (189, 88047), (243, 68481), (567, 29349), (729, 22827), (1087, 15309), (1701, 9783), (2187, 7609), (3261, 5103)]