28280511

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{9551}}^1$

素因数の和:9611

約数の個数: 24

約数和(自身を含む): 47683584

約数和(自身を除く): 19403073

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 9551, 28653, 66857, 85959, 200571, 448897, 601713, 1346691, 3142279, 4040073, 9426837, 28280511]

約数ペア:

[(1, 28280511), (3, 9426837), (7, 4040073), (9, 3142279), (21, 1346691), (47, 601713), (63, 448897), (141, 200571), (329, 85959), (423, 66857), (987, 28653), (2961, 9551)]