161820909

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{117517}}^1$

素因数の和:117546

約数の個数: 20

約数和(自身を含む): 255954204

約数和(自身を除く): 94133295

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 117517, 352551, 1057653, 1997789, 3172959, 5993367, 9518877, 17980101, 53940303, 161820909]

約数ペア:

[(1, 161820909), (3, 53940303), (9, 17980101), (17, 9518877), (27, 5993367), (51, 3172959), (81, 1997789), (153, 1057653), (459, 352551), (1377, 117517)]