28086261

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{11239}}^1$

素因数の和:11273

約数の個数: 24

約数和(自身を含む): 46128960

約数和(自身を除く): 18042699

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 11239, 33717, 78673, 191063, 236019, 550711, 573189, 1337441, 1652133, 4012323, 9362087, 28086261]

約数ペア:

[(1, 28086261), (3, 9362087), (7, 4012323), (17, 1652133), (21, 1337441), (49, 573189), (51, 550711), (119, 236019), (147, 191063), (357, 78673), (833, 33717), (2499, 11239)]