20989571009

素因数分解:

${\mathrm{11}}^2\times {\mathrm{1217}}^1\times {\mathrm{142537}}^1$

素因数の和:143776

約数の個数: 12

約数和(自身を含む): 23090300772

約数和(自身を除く): 2100729763

約数列:

[1, 11, 121, 1217, 13387, 142537, 147257, 1567907, 17246977, 173467529, 1908142819, 20989571009]

約数ペア:

[(1, 20989571009), (11, 1908142819), (121, 173467529), (1217, 17246977), (13387, 1567907), (142537, 147257)]