19678059

素因数分解:

$3^4\times {\mathrm{379}}^1\times {\mathrm{641}}^1$

素因数の和:1032

約数の個数: 20

約数和(自身を含む): 29519160

約数和(自身を除く): 9841101

約数列:

[1, 3, 9, 27, 81, 379, 641, 1137, 1923, 3411, 5769, 10233, 17307, 30699, 51921, 242939, 728817, 2186451, 6559353, 19678059]

約数ペア:

[(1, 19678059), (3, 6559353), (9, 2186451), (27, 728817), (81, 242939), (379, 51921), (641, 30699), (1137, 17307), (1923, 10233), (3411, 5769)]