28507689

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{4229}}^1$

素因数の和:4349

約数の個数: 24

約数和(自身を含む): 47511360

約数和(自身を除く): 19003671

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 4229, 6741, 12687, 29603, 38061, 88809, 266427, 452503, 1357509, 3167521, 4072527, 9502563, 28507689]

約数ペア:

[(1, 28507689), (3, 9502563), (7, 4072527), (9, 3167521), (21, 1357509), (63, 452503), (107, 266427), (321, 88809), (749, 38061), (963, 29603), (2247, 12687), (4229, 6741)]