28347543

素因数分解:

$3^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1181}}^1$

素因数の和:1324

約数の個数: 32

約数和(自身を含む): 48414720

約数和(自身を除く): 20067177

約数列:

[1, 3, 7, 9, 21, 27, 63, 127, 189, 381, 889, 1143, 1181, 2667, 3429, 3543, 8001, 8267, 10629, 24003, 24801, 31887, 74403, 149987, 223209, 449961, 1049909, 1349883, 3149727, 4049649, 9449181, 28347543]

約数ペア:

[(1, 28347543), (3, 9449181), (7, 4049649), (9, 3149727), (21, 1349883), (27, 1049909), (63, 449961), (127, 223209), (189, 149987), (381, 74403), (889, 31887), (1143, 24801), (1181, 24003), (2667, 10629), (3429, 8267), (3543, 8001)]