21155328

素因数分解:

$2^9\times 3^2\times {\mathrm{4591}}^1$

素因数の和:4615

約数の個数: 60

約数和(自身を含む): 61069008

約数和(自身を除く): 39913680

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 256, 288, 384, 512, 576, 768, 1152, 1536, 2304, 4591, 4608, 9182, 13773, 18364, 27546, 36728, 41319, 55092, 73456, 82638, 110184, 146912, 165276, 220368, 293824, 330552, 440736, 587648, 661104, 881472, 1175296, 1322208, 1762944, 2350592, 2644416, 3525888, 5288832, 7051776, 10577664, 21155328]

約数ペア:

[(1, 21155328), (2, 10577664), (3, 7051776), (4, 5288832), (6, 3525888), (8, 2644416), (9, 2350592), (12, 1762944), (16, 1322208), (18, 1175296), (24, 881472), (32, 661104), (36, 587648), (48, 440736), (64, 330552), (72, 293824), (96, 220368), (128, 165276), (144, 146912), (192, 110184), (256, 82638), (288, 73456), (384, 55092), (512, 41319), (576, 36728), (768, 27546), (1152, 18364), (1536, 13773), (2304, 9182), (4591, 4608)]