28131051

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 41932800

約数和(自身を除く): 13801749

約数列:

[1, 3, 13, 39, 47, 103, 141, 149, 309, 447, 611, 1339, 1833, 1937, 4017, 4841, 5811, 7003, 14523, 15347, 21009, 46041, 62933, 91039, 188799, 199511, 273117, 598533, 721309, 2163927, 9377017, 28131051]

約数ペア:

[(1, 28131051), (3, 9377017), (13, 2163927), (39, 721309), (47, 598533), (103, 273117), (141, 199511), (149, 188799), (309, 91039), (447, 62933), (611, 46041), (1339, 21009), (1833, 15347), (1937, 14523), (4017, 7003), (4841, 5811)]