20528118

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2371}}^1$

素因数の和:2429

約数の個数: 48

約数和(自身を含む): 49214256

約数和(自身を除く): 28686138

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 37, 39, 74, 78, 111, 117, 222, 234, 333, 481, 666, 962, 1443, 2371, 2886, 4329, 4742, 7113, 8658, 14226, 21339, 30823, 42678, 61646, 87727, 92469, 175454, 184938, 263181, 277407, 526362, 554814, 789543, 1140451, 1579086, 2280902, 3421353, 6842706, 10264059, 20528118]

約数ペア:

[(1, 20528118), (2, 10264059), (3, 6842706), (6, 3421353), (9, 2280902), (13, 1579086), (18, 1140451), (26, 789543), (37, 554814), (39, 526362), (74, 277407), (78, 263181), (111, 184938), (117, 175454), (222, 92469), (234, 87727), (333, 61646), (481, 42678), (666, 30823), (962, 21339), (1443, 14226), (2371, 8658), (2886, 7113), (4329, 4742)]