20561097

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{2633}}^1$

素因数の和:2792

約数の個数: 16

約数和(自身を含む): 29079360

約数和(自身を除く): 8518263

約数列:

[1, 3, 19, 57, 137, 411, 2603, 2633, 7809, 7899, 50027, 150081, 360721, 1082163, 6853699, 20561097]

約数ペア:

[(1, 20561097), (3, 6853699), (19, 1082163), (57, 360721), (137, 150081), (411, 50027), (2603, 7899), (2633, 7809)]