28881321

素因数分解:

$3^1\times 7^1\times {\mathrm{827}}^1\times {\mathrm{1663}}^1$

素因数の和:2500

約数の個数: 16

約数和(自身を含む): 44089344

約数和(自身を除く): 15208023

約数列:

[1, 3, 7, 21, 827, 1663, 2481, 4989, 5789, 11641, 17367, 34923, 1375301, 4125903, 9627107, 28881321]

約数ペア:

[(1, 28881321), (3, 9627107), (7, 4125903), (21, 1375301), (827, 34923), (1663, 17367), (2481, 11641), (4989, 5789)]