20151856109

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{1873}}^1\times {\mathrm{139729}}^1$

素因数の和:141620

約数の個数: 16

約数和(自身を含む): 25137985920

約数和(自身を除く): 4986129811

約数列:

[1, 7, 11, 77, 1873, 13111, 20603, 139729, 144221, 978103, 1537019, 10759133, 261712417, 1831986919, 2878836587, 20151856109]

約数ペア:

[(1, 20151856109), (7, 2878836587), (11, 1831986919), (77, 261712417), (1873, 10759133), (13111, 1537019), (20603, 978103), (139729, 144221)]