81319077

素因数分解:

$3^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1901}}^1$

素因数の和:2018

約数の個数: 36

約数和(自身を含む): 138119436

約数和(自身を除く): 56800359

約数列:

[1, 3, 7, 9, 21, 49, 63, 97, 147, 291, 441, 679, 873, 1901, 2037, 4753, 5703, 6111, 13307, 14259, 17109, 39921, 42777, 93149, 119763, 184397, 279447, 553191, 838341, 1290779, 1659573, 3872337, 9035453, 11617011, 27106359, 81319077]

約数ペア:

[(1, 81319077), (3, 27106359), (7, 11617011), (9, 9035453), (21, 3872337), (49, 1659573), (63, 1290779), (97, 838341), (147, 553191), (291, 279447), (441, 184397), (679, 119763), (873, 93149), (1901, 42777), (2037, 39921), (4753, 17109), (5703, 14259), (6111, 13307)]