131019889

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 180777856

約数和(自身を除く): 49757967

約数列:

[1, 7, 11, 13, 73, 77, 91, 121, 143, 163, 511, 803, 847, 949, 1001, 1141, 1573, 1793, 2119, 5621, 6643, 8833, 10439, 11011, 11899, 12551, 14833, 19723, 23309, 61831, 73073, 83293, 114829, 130889, 138061, 154687, 163163, 256399, 803803, 916223, 1082809, 1439779, 1701557, 1794793, 10078453, 11910899, 18717127, 131019889]

約数ペア:

[(1, 131019889), (7, 18717127), (11, 11910899), (13, 10078453), (73, 1794793), (77, 1701557), (91, 1439779), (121, 1082809), (143, 916223), (163, 803803), (511, 256399), (803, 163163), (847, 154687), (949, 138061), (1001, 130889), (1141, 114829), (1573, 83293), (1793, 73073), (2119, 61831), (5621, 23309), (6643, 19723), (8833, 14833), (10439, 12551), (11011, 11899)]