20857496

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{743}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 44528400

約数和(自身を除く): 23670904

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 88, 116, 121, 232, 242, 319, 484, 638, 743, 968, 1276, 1486, 2552, 2972, 3509, 5944, 7018, 8173, 14036, 16346, 21547, 28072, 32692, 43094, 65384, 86188, 89903, 172376, 179806, 237017, 359612, 474034, 719224, 948068, 1896136, 2607187, 5214374, 10428748, 20857496]

約数ペア:

[(1, 20857496), (2, 10428748), (4, 5214374), (8, 2607187), (11, 1896136), (22, 948068), (29, 719224), (44, 474034), (58, 359612), (88, 237017), (116, 179806), (121, 172376), (232, 89903), (242, 86188), (319, 65384), (484, 43094), (638, 32692), (743, 28072), (968, 21547), (1276, 16346), (1486, 14036), (2552, 8173), (2972, 7018), (3509, 5944)]