138672639

素因数分解:

$3^2\times 7^1\times {\mathrm{491}}^1\times {\mathrm{4483}}^1$

素因数の和:4987

約数の個数: 24

約数和(自身を含む): 229437312

約数和(自身を除く): 90764673

約数列:

[1, 3, 7, 9, 21, 63, 491, 1473, 3437, 4419, 4483, 10311, 13449, 30933, 31381, 40347, 94143, 282429, 2201153, 6603459, 15408071, 19810377, 46224213, 138672639]

約数ペア:

[(1, 138672639), (3, 46224213), (7, 19810377), (9, 15408071), (21, 6603459), (63, 2201153), (491, 282429), (1473, 94143), (3437, 40347), (4419, 31381), (4483, 30933), (10311, 13449)]