218668891

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{86533}}^1$

素因数の和:86578

約数の個数: 12

約数和(自身を含む): 263755632

約数和(自身を除く): 45086741

約数列:

[1, 7, 19, 133, 361, 2527, 86533, 605731, 1644127, 11508889, 31238413, 218668891]

約数ペア:

[(1, 218668891), (7, 31238413), (19, 11508889), (133, 1644127), (361, 605731), (2527, 86533)]