19209881601

素因数分解:

$3^2\times {\mathrm{12889}}^1\times {\mathrm{165601}}^1$

素因数の和:178496

約数の個数: 12

約数和(自身を含む): 27749927140

約数和(自身を除く): 8540045539

約数列:

[1, 3, 9, 12889, 38667, 116001, 165601, 496803, 1490409, 2134431289, 6403293867, 19209881601]

約数ペア:

[(1, 19209881601), (3, 6403293867), (9, 2134431289), (12889, 1490409), (38667, 496803), (116001, 165601)]