27920781

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2141}}^1$

素因数の和:2183

約数の個数: 40

約数和(自身を含む): 49762944

約数和(自身を除く): 21842163

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1449, 1863, 2141, 4347, 6423, 13041, 14987, 19269, 44961, 49243, 57807, 134883, 147729, 173421, 344701, 404649, 443187, 1034103, 1213947, 1329561, 3102309, 3988683, 9306927, 27920781]

約数ペア:

[(1, 27920781), (3, 9306927), (7, 3988683), (9, 3102309), (21, 1329561), (23, 1213947), (27, 1034103), (63, 443187), (69, 404649), (81, 344701), (161, 173421), (189, 147729), (207, 134883), (483, 57807), (567, 49243), (621, 44961), (1449, 19269), (1863, 14987), (2141, 13041), (4347, 6423)]