18779684

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{241}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 43257984

約数和(自身を除く): 24478300

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 77, 92, 121, 154, 161, 241, 242, 253, 308, 322, 482, 484, 506, 644, 847, 964, 1012, 1687, 1694, 1771, 2651, 2783, 3374, 3388, 3542, 5302, 5543, 5566, 6748, 7084, 10604, 11086, 11132, 18557, 19481, 22172, 29161, 37114, 38801, 38962, 58322, 60973, 74228, 77602, 77924, 116644, 121946, 155204, 204127, 243892, 408254, 426811, 670703, 816508, 853622, 1341406, 1707244, 2682812, 4694921, 9389842, 18779684]

約数ペア:

[(1, 18779684), (2, 9389842), (4, 4694921), (7, 2682812), (11, 1707244), (14, 1341406), (22, 853622), (23, 816508), (28, 670703), (44, 426811), (46, 408254), (77, 243892), (92, 204127), (121, 155204), (154, 121946), (161, 116644), (241, 77924), (242, 77602), (253, 74228), (308, 60973), (322, 58322), (482, 38962), (484, 38801), (506, 37114), (644, 29161), (847, 22172), (964, 19481), (1012, 18557), (1687, 11132), (1694, 11086), (1771, 10604), (2651, 7084), (2783, 6748), (3374, 5566), (3388, 5543), (3542, 5302)]