28620291

素因数分解:

$3^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{5303}}^1$

素因数の和:5570

約数の個数: 16

約数和(自身を含む): 43789824

約数和(自身を除く): 15169533

約数列:

[1, 3, 7, 21, 257, 771, 1799, 5303, 5397, 15909, 37121, 111363, 1362871, 4088613, 9540097, 28620291]

約数ペア:

[(1, 28620291), (3, 9540097), (7, 4088613), (21, 1362871), (257, 111363), (771, 37121), (1799, 15909), (5303, 5397)]