18053721

素因数分解:

$3^2\times 7^1\times {\mathrm{509}}^1\times {\mathrm{563}}^1$

素因数の和:1085

約数の個数: 24

約数和(自身を含む): 29914560

約数和(自身を除く): 11860839

約数列:

[1, 3, 7, 9, 21, 63, 509, 563, 1527, 1689, 3563, 3941, 4581, 5067, 10689, 11823, 32067, 35469, 286567, 859701, 2005969, 2579103, 6017907, 18053721]

約数ペア:

[(1, 18053721), (3, 6017907), (7, 2579103), (9, 2005969), (21, 859701), (63, 286567), (509, 35469), (563, 32067), (1527, 11823), (1689, 10689), (3563, 5067), (3941, 4581)]