77181819

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1$

素因数の和:620

約数の個数: 64

約数和(自身を含む): 134991360

約数和(自身を除く): 57809541

約数列:

[1, 3, 11, 13, 17, 19, 33, 39, 51, 57, 143, 187, 209, 221, 247, 323, 429, 557, 561, 627, 663, 741, 969, 1671, 2431, 2717, 3553, 4199, 6127, 7241, 7293, 8151, 9469, 10583, 10659, 12597, 18381, 21723, 28407, 31749, 46189, 79651, 104159, 116413, 123097, 137579, 138567, 179911, 238953, 312477, 349239, 369291, 412737, 539733, 1354067, 1513369, 1979021, 2338843, 4062201, 4540107, 5937063, 7016529, 25727273, 77181819]

約数ペア:

[(1, 77181819), (3, 25727273), (11, 7016529), (13, 5937063), (17, 4540107), (19, 4062201), (33, 2338843), (39, 1979021), (51, 1513369), (57, 1354067), (143, 539733), (187, 412737), (209, 369291), (221, 349239), (247, 312477), (323, 238953), (429, 179911), (557, 138567), (561, 137579), (627, 123097), (663, 116413), (741, 104159), (969, 79651), (1671, 46189), (2431, 31749), (2717, 28407), (3553, 21723), (4199, 18381), (6127, 12597), (7241, 10659), (7293, 10583), (8151, 9469)]