21171972

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{733}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 51791040

約数和(自身を除く): 30619068

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 83, 87, 116, 166, 174, 249, 332, 348, 498, 733, 996, 1466, 2199, 2407, 2932, 4398, 4814, 7221, 8796, 9628, 14442, 21257, 28884, 42514, 60839, 63771, 85028, 121678, 127542, 182517, 243356, 255084, 365034, 730068, 1764331, 3528662, 5292993, 7057324, 10585986, 21171972]

約数ペア:

[(1, 21171972), (2, 10585986), (3, 7057324), (4, 5292993), (6, 3528662), (12, 1764331), (29, 730068), (58, 365034), (83, 255084), (87, 243356), (116, 182517), (166, 127542), (174, 121678), (249, 85028), (332, 63771), (348, 60839), (498, 42514), (733, 28884), (996, 21257), (1466, 14442), (2199, 9628), (2407, 8796), (2932, 7221), (4398, 4814)]