28585767

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{1399}}^1$

素因数の和:1555

約数の個数: 24

約数和(自身を含む): 44688000

約数和(自身を除く): 16102233

約数列:

[1, 3, 7, 21, 49, 139, 147, 417, 973, 1399, 2919, 4197, 6811, 9793, 20433, 29379, 68551, 194461, 205653, 583383, 1361227, 4083681, 9528589, 28585767]

約数ペア:

[(1, 28585767), (3, 9528589), (7, 4083681), (21, 1361227), (49, 583383), (139, 205653), (147, 194461), (417, 68551), (973, 29379), (1399, 20433), (2919, 9793), (4197, 6811)]