821783799

素因数分解:

$3^4\times {\mathrm{113}}^1\times {\mathrm{89783}}^1$

素因数の和:89908

約数の個数: 20

約数和(自身を含む): 1238480496

約数和(自身を除く): 416696697

約数列:

[1, 3, 9, 27, 81, 113, 339, 1017, 3051, 9153, 89783, 269349, 808047, 2424141, 7272423, 10145479, 30436437, 91309311, 273927933, 821783799]

約数ペア:

[(1, 821783799), (3, 273927933), (9, 91309311), (27, 30436437), (81, 10145479), (113, 7272423), (339, 2424141), (1017, 808047), (3051, 269349), (9153, 89783)]