19680759

素因数分解:

$3^3\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1031}}^1$

素因数の和:1148

約数の個数: 32

約数和(自身を含む): 33684480

約数和(自身を除く): 14003721

約数列:

[1, 3, 7, 9, 21, 27, 63, 101, 189, 303, 707, 909, 1031, 2121, 2727, 3093, 6363, 7217, 9279, 19089, 21651, 27837, 64953, 104131, 194859, 312393, 728917, 937179, 2186751, 2811537, 6560253, 19680759]

約数ペア:

[(1, 19680759), (3, 6560253), (7, 2811537), (9, 2186751), (21, 937179), (27, 728917), (63, 312393), (101, 194859), (189, 104131), (303, 64953), (707, 27837), (909, 21651), (1031, 19089), (2121, 9279), (2727, 7217), (3093, 6363)]