21540789

素因数分解:

$3^3\times {\mathrm{191}}^1\times {\mathrm{4177}}^1$

素因数の和:4377

約数の個数: 16

約数和(自身を含む): 32087040

約数和(自身を除く): 10546251

約数列:

[1, 3, 9, 27, 191, 573, 1719, 4177, 5157, 12531, 37593, 112779, 797807, 2393421, 7180263, 21540789]

約数ペア:

[(1, 21540789), (3, 7180263), (9, 2393421), (27, 797807), (191, 112779), (573, 37593), (1719, 12531), (4177, 5157)]