28926009

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{9769}}^1$

素因数の和:9829

約数の個数: 24

約数和(自身を含む): 48771840

約数和(自身を除く): 19845831

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 9769, 29307, 68383, 87921, 205149, 459143, 615447, 1377429, 3214001, 4132287, 9642003, 28926009]

約数ペア:

[(1, 28926009), (3, 9642003), (7, 4132287), (9, 3214001), (21, 1377429), (47, 615447), (63, 459143), (141, 205149), (329, 87921), (423, 68383), (987, 29307), (2961, 9769)]