20216502572

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{709}}^1\times {\mathrm{9887}}^1$

素因数の和:10710

約数の個数: 48

約数和(自身を含む): 40887275520

約数和(自身を除く): 20670772948

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 709, 721, 1418, 1442, 2836, 2884, 4963, 9887, 9926, 19774, 19852, 39548, 69209, 73027, 138418, 146054, 276836, 292108, 511189, 1018361, 1022378, 2036722, 2044756, 4073444, 7009883, 7128527, 14019766, 14257054, 28039532, 28514108, 49069181, 98138362, 196276724, 722017949, 1444035898, 2888071796, 5054125643, 10108251286, 20216502572]

約数ペア:

[(1, 20216502572), (2, 10108251286), (4, 5054125643), (7, 2888071796), (14, 1444035898), (28, 722017949), (103, 196276724), (206, 98138362), (412, 49069181), (709, 28514108), (721, 28039532), (1418, 14257054), (1442, 14019766), (2836, 7128527), (2884, 7009883), (4963, 4073444), (9887, 2044756), (9926, 2036722), (19774, 1022378), (19852, 1018361), (39548, 511189), (69209, 292108), (73027, 276836), (138418, 146054)]