21235489

素因数分解:

${\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:408

約数の個数: 16

約数和(自身を含む): 23760000

約数和(自身を除く): 2524511

約数列:

[1, 11, 89, 109, 199, 979, 1199, 2189, 9701, 17711, 21691, 106711, 194821, 238601, 1930499, 21235489]

約数ペア:

[(1, 21235489), (11, 1930499), (89, 238601), (109, 194821), (199, 106711), (979, 21691), (1199, 17711), (2189, 9701)]