31439993

素因数分解:

${\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:416

約数の個数: 16

約数和(自身を含む): 34621440

約数和(自身を除く): 3181447

約数列:

[1, 13, 127, 137, 139, 1651, 1781, 1807, 17399, 17653, 19043, 226187, 229489, 247559, 2418461, 31439993]

約数ペア:

[(1, 31439993), (13, 2418461), (127, 247559), (137, 229489), (139, 226187), (1651, 19043), (1781, 17653), (1807, 17399)]