28217493

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{1481}}^1$

素因数の和:1589

約数の個数: 24

約数和(自身を含む): 42770520

約数和(自身を除く): 14553027

約数列:

[1, 3, 9, 29, 73, 87, 219, 261, 657, 1481, 2117, 4443, 6351, 13329, 19053, 42949, 108113, 128847, 324339, 386541, 973017, 3135277, 9405831, 28217493]

約数ペア:

[(1, 28217493), (3, 9405831), (9, 3135277), (29, 973017), (73, 386541), (87, 324339), (219, 128847), (261, 108113), (657, 42949), (1481, 19053), (2117, 13329), (4443, 6351)]