20154864961

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{20599}}^1$

素因数の和:20845

約数の個数: 32

約数和(自身を含む): 25582233600

約数和(自身を除く): 5427368639

約数列:

[1, 7, 11, 77, 97, 131, 679, 917, 1067, 1441, 7469, 10087, 12707, 20599, 88949, 139777, 144193, 226589, 978439, 1586123, 1998103, 2698469, 13986721, 18889283, 21979133, 29683159, 153853931, 207782113, 261751493, 1832260451, 2879266423, 20154864961]

約数ペア:

[(1, 20154864961), (7, 2879266423), (11, 1832260451), (77, 261751493), (97, 207782113), (131, 153853931), (679, 29683159), (917, 21979133), (1067, 18889283), (1441, 13986721), (7469, 2698469), (10087, 1998103), (12707, 1586123), (20599, 978439), (88949, 226589), (139777, 144193)]