212712891

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{20959}}^1$

素因数の和:21178

約数の個数: 16

約数和(自身を含む): 301824000

約数和(自身を除く): 89111109

約数列:

[1, 3, 17, 51, 199, 597, 3383, 10149, 20959, 62877, 356303, 1068909, 4170841, 12512523, 70904297, 212712891]

約数ペア:

[(1, 212712891), (3, 70904297), (17, 12512523), (51, 4170841), (199, 1068909), (597, 356303), (3383, 62877), (10149, 20959)]