21155184

素因数分解:

$2^4\times 3^2\times {\mathrm{107}}^1\times {\mathrm{1373}}^1$

素因数の和:1494

約数の個数: 60

約数和(自身を含む): 59801976

約数和(自身を除く): 38646792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 107, 144, 214, 321, 428, 642, 856, 963, 1284, 1373, 1712, 1926, 2568, 2746, 3852, 4119, 5136, 5492, 7704, 8238, 10984, 12357, 15408, 16476, 21968, 24714, 32952, 49428, 65904, 98856, 146911, 197712, 293822, 440733, 587644, 881466, 1175288, 1322199, 1762932, 2350576, 2644398, 3525864, 5288796, 7051728, 10577592, 21155184]

約数ペア:

[(1, 21155184), (2, 10577592), (3, 7051728), (4, 5288796), (6, 3525864), (8, 2644398), (9, 2350576), (12, 1762932), (16, 1322199), (18, 1175288), (24, 881466), (36, 587644), (48, 440733), (72, 293822), (107, 197712), (144, 146911), (214, 98856), (321, 65904), (428, 49428), (642, 32952), (856, 24714), (963, 21968), (1284, 16476), (1373, 15408), (1712, 12357), (1926, 10984), (2568, 8238), (2746, 7704), (3852, 5492), (4119, 5136)]