20390667

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1913}}^1$

素因数の和:1963

約数の個数: 32

約数和(自身を含む): 33073920

約数和(自身を除く): 12683253

約数列:

[1, 3, 11, 17, 19, 33, 51, 57, 187, 209, 323, 561, 627, 969, 1913, 3553, 5739, 10659, 21043, 32521, 36347, 63129, 97563, 109041, 357731, 399817, 617899, 1073193, 1199451, 1853697, 6796889, 20390667]

約数ペア:

[(1, 20390667), (3, 6796889), (11, 1853697), (17, 1199451), (19, 1073193), (33, 617899), (51, 399817), (57, 357731), (187, 109041), (209, 97563), (323, 63129), (561, 36347), (627, 32521), (969, 21043), (1913, 10659), (3553, 5739)]