28736757

素因数分解:

$3^2\times 7^1\times {\mathrm{491}}^1\times {\mathrm{929}}^1$

素因数の和:1433

約数の個数: 24

約数和(自身を含む): 47586240

約数和(自身を除く): 18849483

約数列:

[1, 3, 7, 9, 21, 63, 491, 929, 1473, 2787, 3437, 4419, 6503, 8361, 10311, 19509, 30933, 58527, 456139, 1368417, 3192973, 4105251, 9578919, 28736757]

約数ペア:

[(1, 28736757), (3, 9578919), (7, 4105251), (9, 3192973), (21, 1368417), (63, 456139), (491, 58527), (929, 30933), (1473, 19509), (2787, 10311), (3437, 8361), (4419, 6503)]