21139452

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{7433}}^1$

素因数の和:7522

約数の個数: 36

約数和(自身を含む): 54119520

約数和(自身を除く): 32980068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 158, 237, 316, 474, 711, 948, 1422, 2844, 7433, 14866, 22299, 29732, 44598, 66897, 89196, 133794, 267588, 587207, 1174414, 1761621, 2348828, 3523242, 5284863, 7046484, 10569726, 21139452]

約数ペア:

[(1, 21139452), (2, 10569726), (3, 7046484), (4, 5284863), (6, 3523242), (9, 2348828), (12, 1761621), (18, 1174414), (36, 587207), (79, 267588), (158, 133794), (237, 89196), (316, 66897), (474, 44598), (711, 29732), (948, 22299), (1422, 14866), (2844, 7433)]