21055164

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{971}}^1$

素因数の和:1130

約数の個数: 48

約数和(自身を含む): 53343360

約数和(自身を除く): 32288196

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 139, 156, 278, 417, 556, 834, 971, 1668, 1807, 1942, 2913, 3614, 3884, 5421, 5826, 7228, 10842, 11652, 12623, 21684, 25246, 37869, 50492, 75738, 134969, 151476, 269938, 404907, 539876, 809814, 1619628, 1754597, 3509194, 5263791, 7018388, 10527582, 21055164]

約数ペア:

[(1, 21055164), (2, 10527582), (3, 7018388), (4, 5263791), (6, 3509194), (12, 1754597), (13, 1619628), (26, 809814), (39, 539876), (52, 404907), (78, 269938), (139, 151476), (156, 134969), (278, 75738), (417, 50492), (556, 37869), (834, 25246), (971, 21684), (1668, 12623), (1807, 11652), (1942, 10842), (2913, 7228), (3614, 5826), (3884, 5421)]