168956721

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{988051}}^1$

素因数の和:988076

約数の個数: 12

約数和(自身を含む): 256893520

約数和(自身を除く): 87936799

約数列:

[1, 3, 9, 19, 57, 171, 988051, 2964153, 8892459, 18772969, 56318907, 168956721]

約数ペア:

[(1, 168956721), (3, 56318907), (9, 18772969), (19, 8892459), (57, 2964153), (171, 988051)]