28086219

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{12049}}^1$

素因数の和:12099

約数の個数: 24

約数和(自身を含む): 47621600

約数和(自身を除く): 19535381

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 12049, 36147, 84343, 108441, 253029, 445813, 759087, 1337439, 3120691, 4012317, 9362073, 28086219]

約数ペア:

[(1, 28086219), (3, 9362073), (7, 4012317), (9, 3120691), (21, 1337439), (37, 759087), (63, 445813), (111, 253029), (259, 108441), (333, 84343), (777, 36147), (2331, 12049)]