28657167

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{947}}^1$

素因数の和:1099

約数の個数: 32

約数和(自身を含む): 48052224

約数和(自身を除く): 19395057

約数列:

[1, 3, 7, 11, 21, 33, 77, 131, 231, 393, 917, 947, 1441, 2751, 2841, 4323, 6629, 10087, 10417, 19887, 30261, 31251, 72919, 124057, 218757, 372171, 868399, 1364627, 2605197, 4093881, 9552389, 28657167]

約数ペア:

[(1, 28657167), (3, 9552389), (7, 4093881), (11, 2605197), (21, 1364627), (33, 868399), (77, 372171), (131, 218757), (231, 124057), (393, 72919), (917, 31251), (947, 30261), (1441, 19887), (2751, 10417), (2841, 10087), (4323, 6629)]