209986007

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{1021}}^1\times {\mathrm{2671}}^1$

素因数の和:3710

約数の個数: 16

約数和(自身を含む): 262155264

約数和(自身を除く): 52169257

約数列:

[1, 7, 11, 77, 1021, 2671, 7147, 11231, 18697, 29381, 78617, 205667, 2727091, 19089637, 29998001, 209986007]

約数ペア:

[(1, 209986007), (7, 29998001), (11, 19089637), (77, 2727091), (1021, 205667), (2671, 78617), (7147, 29381), (11231, 18697)]