27818721

素因数分解:

$3^4\times 7^2\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:232

約数の個数: 60

約数和(自身を含む): 49768752

約数和(自身を除く): 21950031

約数列:

[1, 3, 7, 9, 21, 27, 43, 49, 63, 81, 129, 147, 163, 189, 301, 387, 441, 489, 567, 903, 1141, 1161, 1323, 1467, 2107, 2709, 3423, 3483, 3969, 4401, 6321, 7009, 7987, 8127, 10269, 13203, 18963, 21027, 23961, 24381, 30807, 49063, 56889, 63081, 71883, 92421, 147189, 170667, 189243, 215649, 343441, 441567, 567729, 646947, 1030323, 1324701, 3090969, 3974103, 9272907, 27818721]

約数ペア:

[(1, 27818721), (3, 9272907), (7, 3974103), (9, 3090969), (21, 1324701), (27, 1030323), (43, 646947), (49, 567729), (63, 441567), (81, 343441), (129, 215649), (147, 189243), (163, 170667), (189, 147189), (301, 92421), (387, 71883), (441, 63081), (489, 56889), (567, 49063), (903, 30807), (1141, 24381), (1161, 23961), (1323, 21027), (1467, 18963), (2107, 13203), (2709, 10269), (3423, 8127), (3483, 7987), (3969, 7009), (4401, 6321)]