19818012

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 47801600

約数和(自身を除く): 27983588

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 193, 199, 258, 386, 398, 516, 579, 597, 772, 796, 1158, 1194, 2316, 2388, 8299, 8557, 16598, 17114, 24897, 25671, 33196, 34228, 38407, 49794, 51342, 76814, 99588, 102684, 115221, 153628, 230442, 460884, 1651501, 3303002, 4954503, 6606004, 9909006, 19818012]

約数ペア:

[(1, 19818012), (2, 9909006), (3, 6606004), (4, 4954503), (6, 3303002), (12, 1651501), (43, 460884), (86, 230442), (129, 153628), (172, 115221), (193, 102684), (199, 99588), (258, 76814), (386, 51342), (398, 49794), (516, 38407), (579, 34228), (597, 33196), (772, 25671), (796, 24897), (1158, 17114), (1194, 16598), (2316, 8557), (2388, 8299)]