18903729

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{10313}}^1$

素因数の和:10376

約数の個数: 16

約数和(自身を含む): 27724032

約数和(自身を除く): 8820303

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 10313, 30939, 134069, 402207, 484711, 1454133, 6301243, 18903729]

約数ペア:

[(1, 18903729), (3, 6301243), (13, 1454133), (39, 484711), (47, 402207), (141, 134069), (611, 30939), (1833, 10313)]