281775861

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{8369}}^1$

素因数の和:8450

約数の個数: 32

約数和(自身を含む): 441936000

約数和(自身を除く): 160160139

約数列:

[1, 3, 9, 27, 29, 43, 87, 129, 261, 387, 783, 1161, 1247, 3741, 8369, 11223, 25107, 33669, 75321, 225963, 242701, 359867, 728103, 1079601, 2184309, 3238803, 6552927, 9716409, 10436143, 31308429, 93925287, 281775861]

約数ペア:

[(1, 281775861), (3, 93925287), (9, 31308429), (27, 10436143), (29, 9716409), (43, 6552927), (87, 3238803), (129, 2184309), (261, 1079601), (387, 728103), (783, 359867), (1161, 242701), (1247, 225963), (3741, 75321), (8369, 33669), (11223, 25107)]