138872007

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{42743}}^1$

素因数の和:42787

約数の個数: 18

約数和(自身を含む): 211711032

約数和(自身を除く): 72839025

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 42743, 128229, 384687, 812117, 2436351, 7309053, 15430223, 46290669, 138872007]

約数ペア:

[(1, 138872007), (3, 46290669), (9, 15430223), (19, 7309053), (57, 2436351), (171, 812117), (361, 384687), (1083, 128229), (3249, 42743)]