19005159915

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{440393}}^1$

素因数の和:440548

約数の個数: 48

約数和(自身を含む): 37923208128

約数和(自身を除く): 18918048213

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 137, 315, 411, 685, 959, 1233, 2055, 2877, 4795, 6165, 8631, 14385, 43155, 440393, 1321179, 2201965, 3082751, 3963537, 6605895, 9248253, 15413755, 19817685, 27744759, 46241265, 60333841, 138723795, 181001523, 301669205, 422336887, 543004569, 905007615, 1267010661, 2111684435, 2715022845, 3801031983, 6335053305, 19005159915]

約数ペア:

[(1, 19005159915), (3, 6335053305), (5, 3801031983), (7, 2715022845), (9, 2111684435), (15, 1267010661), (21, 905007615), (35, 543004569), (45, 422336887), (63, 301669205), (105, 181001523), (137, 138723795), (315, 60333841), (411, 46241265), (685, 27744759), (959, 19817685), (1233, 15413755), (2055, 9248253), (2877, 6605895), (4795, 3963537), (6165, 3082751), (8631, 2201965), (14385, 1321179), (43155, 440393)]