28241619

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1913}}^1$

素因数の和:1979

約数の個数: 32

約数和(自身を含む): 46548480

約数和(自身を除く): 18306861

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 259, 399, 703, 777, 1913, 2109, 4921, 5739, 13391, 14763, 36347, 40173, 70781, 109041, 212343, 254429, 495467, 763287, 1344839, 1486401, 4034517, 9413873, 28241619]

約数ペア:

[(1, 28241619), (3, 9413873), (7, 4034517), (19, 1486401), (21, 1344839), (37, 763287), (57, 495467), (111, 254429), (133, 212343), (259, 109041), (399, 70781), (703, 40173), (777, 36347), (1913, 14763), (2109, 13391), (4921, 5739)]