399806493

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{17939}}^1$

素因数の和:18001

約数の個数: 32

約数和(自身を含む): 620006400

約数和(自身を除く): 220199907

約数列:

[1, 3, 17, 19, 23, 51, 57, 69, 323, 391, 437, 969, 1173, 1311, 7429, 17939, 22287, 53817, 304963, 340841, 412597, 914889, 1022523, 1237791, 5794297, 7014149, 7839343, 17382891, 21042447, 23518029, 133268831, 399806493]

約数ペア:

[(1, 399806493), (3, 133268831), (17, 23518029), (19, 21042447), (23, 17382891), (51, 7839343), (57, 7014149), (69, 5794297), (323, 1237791), (391, 1022523), (437, 914889), (969, 412597), (1173, 340841), (1311, 304963), (7429, 53817), (17939, 22287)]