28192689

素因数分解:

$3^2\times 7^2\times {\mathrm{63929}}^1$

素因数の和:63949

約数の個数: 18

約数和(自身を含む): 47372130

約数和(自身を除く): 19179441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 63929, 191787, 447503, 575361, 1342509, 3132521, 4027527, 9397563, 28192689]

約数ペア:

[(1, 28192689), (3, 9397563), (7, 4027527), (9, 3132521), (21, 1342509), (49, 575361), (63, 447503), (147, 191787), (441, 63929)]