128464749

素因数分解:

$3^2\times 7^1\times {\mathrm{491}}^1\times {\mathrm{4153}}^1$

素因数の和:4657

約数の個数: 24

約数和(自身を含む): 212551872

約数和(自身を除く): 84087123

約数列:

[1, 3, 7, 9, 21, 63, 491, 1473, 3437, 4153, 4419, 10311, 12459, 29071, 30933, 37377, 87213, 261639, 2039123, 6117369, 14273861, 18352107, 42821583, 128464749]

約数ペア:

[(1, 128464749), (3, 42821583), (7, 18352107), (9, 14273861), (21, 6117369), (63, 2039123), (491, 261639), (1473, 87213), (3437, 37377), (4153, 30933), (4419, 29071), (10311, 12459)]