861259221

素因数分解:

$3^2\times {\mathrm{173}}^1\times {\mathrm{553153}}^1$

素因数の和:553332

約数の個数: 12

約数和(自身を含む): 1251234348

約数和(自身を除く): 389975127

約数列:

[1, 3, 9, 173, 519, 1557, 553153, 1659459, 4978377, 95695469, 287086407, 861259221]

約数ペア:

[(1, 861259221), (3, 287086407), (9, 95695469), (173, 4978377), (519, 1659459), (1557, 553153)]