28920227721

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{251903}}^1$

素因数の和:252002

約数の個数: 48

約数和(自身を含む): 49623072768

約数和(自身を除く): 20702845047

約数列:

[1, 3, 7, 11, 21, 33, 49, 71, 77, 147, 213, 231, 497, 539, 781, 1491, 1617, 2343, 3479, 5467, 10437, 16401, 38269, 114807, 251903, 755709, 1763321, 2770933, 5289963, 8312799, 12343247, 17885113, 19396531, 37029741, 53655339, 58189593, 125195791, 135775717, 196736243, 375587373, 407327151, 590208729, 876370537, 1377153701, 2629111611, 4131461103, 9640075907, 28920227721]

約数ペア:

[(1, 28920227721), (3, 9640075907), (7, 4131461103), (11, 2629111611), (21, 1377153701), (33, 876370537), (49, 590208729), (71, 407327151), (77, 375587373), (147, 196736243), (213, 135775717), (231, 125195791), (497, 58189593), (539, 53655339), (781, 37029741), (1491, 19396531), (1617, 17885113), (2343, 12343247), (3479, 8312799), (5467, 5289963), (10437, 2770933), (16401, 1763321), (38269, 755709), (114807, 251903)]