21706884

素因数分解:

$2^2\times 3^2\times {\mathrm{431}}^1\times {\mathrm{1399}}^1$

素因数の和:1840

約数の個数: 36

約数和(自身を含む): 55036800

約数和(自身を除く): 33329916

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 431, 862, 1293, 1399, 1724, 2586, 2798, 3879, 4197, 5172, 5596, 7758, 8394, 12591, 15516, 16788, 25182, 50364, 602969, 1205938, 1808907, 2411876, 3617814, 5426721, 7235628, 10853442, 21706884]

約数ペア:

[(1, 21706884), (2, 10853442), (3, 7235628), (4, 5426721), (6, 3617814), (9, 2411876), (12, 1808907), (18, 1205938), (36, 602969), (431, 50364), (862, 25182), (1293, 16788), (1399, 15516), (1724, 12591), (2586, 8394), (2798, 7758), (3879, 5596), (4197, 5172)]