28874313

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1613}}^1$

素因数の和:1655

約数の個数: 40

約数和(自身を含む): 49214088

約数和(自身を除く): 20339775

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 351, 459, 663, 1053, 1377, 1613, 1989, 4839, 5967, 14517, 17901, 20969, 27421, 43551, 62907, 82263, 130653, 188721, 246789, 356473, 566163, 740367, 1069419, 1698489, 2221101, 3208257, 9624771, 28874313]

約数ペア:

[(1, 28874313), (3, 9624771), (9, 3208257), (13, 2221101), (17, 1698489), (27, 1069419), (39, 740367), (51, 566163), (81, 356473), (117, 246789), (153, 188721), (221, 130653), (351, 82263), (459, 62907), (663, 43551), (1053, 27421), (1377, 20969), (1613, 17901), (1989, 14517), (4839, 5967)]