86991709

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 113762880

約数和(自身を除く): 26771171

約数列:

[1, 7, 19, 41, 43, 49, 53, 133, 287, 301, 371, 779, 817, 931, 1007, 1763, 2009, 2107, 2173, 2279, 2597, 5453, 5719, 7049, 12341, 15211, 15953, 33497, 38171, 40033, 41287, 43301, 49343, 86387, 93439, 106477, 111671, 234479, 289009, 303107, 654073, 1641353, 1775341, 2023063, 2121749, 4578511, 12427387, 86991709]

約数ペア:

[(1, 86991709), (7, 12427387), (19, 4578511), (41, 2121749), (43, 2023063), (49, 1775341), (53, 1641353), (133, 654073), (287, 303107), (301, 289009), (371, 234479), (779, 111671), (817, 106477), (931, 93439), (1007, 86387), (1763, 49343), (2009, 43301), (2107, 41287), (2173, 40033), (2279, 38171), (2597, 33497), (5453, 15953), (5719, 15211), (7049, 12341)]