31206417

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{701}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 48522240

約数和(自身を除く): 17315823

約数列:

[1, 3, 11, 19, 33, 57, 71, 209, 213, 627, 701, 781, 1349, 2103, 2343, 4047, 7711, 13319, 14839, 23133, 39957, 44517, 49771, 146509, 149313, 439527, 547481, 945649, 1642443, 2836947, 10402139, 31206417]

約数ペア:

[(1, 31206417), (3, 10402139), (11, 2836947), (19, 1642443), (33, 945649), (57, 547481), (71, 439527), (209, 149313), (213, 146509), (627, 49771), (701, 44517), (781, 39957), (1349, 23133), (2103, 14839), (2343, 13319), (4047, 7711)]