28393771

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{127}}^1$

素因数の和:235

約数の個数: 24

約数和(自身を含む): 35287040

約数和(自身を除く): 6893269

約数列:

[1, 7, 19, 41, 127, 133, 287, 779, 889, 1681, 2413, 5207, 5453, 11767, 16891, 31939, 36449, 98933, 213487, 223573, 692531, 1494409, 4056253, 28393771]

約数ペア:

[(1, 28393771), (7, 4056253), (19, 1494409), (41, 692531), (127, 223573), (133, 213487), (287, 98933), (779, 36449), (889, 31939), (1681, 16891), (2413, 11767), (5207, 5453)]