127978417

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{10889}}^1$

素因数の和:10992

約数の個数: 16

約数和(自身を含む): 154725120

約数和(自身を除く): 26746703

約数列:

[1, 7, 23, 73, 161, 511, 1679, 10889, 11753, 76223, 250447, 794897, 1753129, 5564279, 18282631, 127978417]

約数ペア:

[(1, 127978417), (7, 18282631), (23, 5564279), (73, 1753129), (161, 794897), (511, 250447), (1679, 76223), (10889, 11753)]