278320023

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{65657}}^1$

素因数の和:65823

約数の個数: 16

約数和(自身を含む): 414958560

約数和(自身を除く): 136638537

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 65657, 196971, 590913, 1772739, 10308149, 30924447, 92773341, 278320023]

約数ペア:

[(1, 278320023), (3, 92773341), (9, 30924447), (27, 10308149), (157, 1772739), (471, 590913), (1413, 196971), (4239, 65657)]