31277211

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1823}}^1$

素因数の和:1895

約数の個数: 32

約数和(自身を含む): 51363840

約数和(自身を除く): 20086629

約数列:

[1, 3, 7, 19, 21, 43, 57, 129, 133, 301, 399, 817, 903, 1823, 2451, 5469, 5719, 12761, 17157, 34637, 38283, 78389, 103911, 235167, 242459, 548723, 727377, 1489391, 1646169, 4468173, 10425737, 31277211]

約数ペア:

[(1, 31277211), (3, 10425737), (7, 4468173), (19, 1646169), (21, 1489391), (43, 727377), (57, 548723), (129, 242459), (133, 235167), (301, 103911), (399, 78389), (817, 38283), (903, 34637), (1823, 17157), (2451, 12761), (5469, 5719)]