2171871

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1015

約数の個数: 24

約数和(自身を含む): 3559920

約数和(自身を除く): 1388049

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 977, 2223, 2931, 8793, 12701, 18563, 38103, 55689, 114309, 167067, 241319, 723957, 2171871]

約数ペア:

[(1, 2171871), (3, 723957), (9, 241319), (13, 167067), (19, 114309), (39, 55689), (57, 38103), (117, 18563), (171, 12701), (247, 8793), (741, 2931), (977, 2223)]