27939139

素因数分解:

${\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:378

約数の個数: 16

約数和(自身を含む): 30240000

約数和(自身を除く): 2300861

約数列:

[1, 19, 71, 139, 149, 1349, 2641, 2831, 9869, 10579, 20711, 187511, 201001, 393509, 1470481, 27939139]

約数ペア:

[(1, 27939139), (19, 1470481), (71, 393509), (139, 201001), (149, 187511), (1349, 20711), (2641, 10579), (2831, 9869)]