20687535274

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1\times {\mathrm{78479}}^1$

素因数の和:79498

約数の個数: 32

約数和(自身を含む): 37369036800

約数和(自身を除く): 16681501526

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 991, 1982, 6937, 13874, 18829, 37658, 78479, 131803, 156958, 263606, 549353, 1098706, 1491101, 2982202, 10437707, 20875414, 77772689, 155545378, 544408823, 1088817646, 1477681091, 2955362182, 10343767637, 20687535274]

約数ペア:

[(1, 20687535274), (2, 10343767637), (7, 2955362182), (14, 1477681091), (19, 1088817646), (38, 544408823), (133, 155545378), (266, 77772689), (991, 20875414), (1982, 10437707), (6937, 2982202), (13874, 1491101), (18829, 1098706), (37658, 549353), (78479, 263606), (131803, 156958)]