28143027

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{601}}^1$

素因数の和:672

約数の個数: 36

約数和(自身を含む): 45797752

約数和(自身を除く): 17654725

約数列:

[1, 3, 9, 11, 33, 43, 99, 121, 129, 363, 387, 473, 601, 1089, 1419, 1803, 4257, 5203, 5409, 6611, 15609, 19833, 25843, 46827, 59499, 72721, 77529, 218163, 232587, 284273, 654489, 852819, 2558457, 3127003, 9381009, 28143027]

約数ペア:

[(1, 28143027), (3, 9381009), (9, 3127003), (11, 2558457), (33, 852819), (43, 654489), (99, 284273), (121, 232587), (129, 218163), (363, 77529), (387, 72721), (473, 59499), (601, 46827), (1089, 25843), (1419, 19833), (1803, 15609), (4257, 6611), (5203, 5409)]