20379435

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 33702912

約数和(自身を除く): 13323477

約数列:

[1, 3, 5, 15, 47, 137, 141, 211, 235, 411, 633, 685, 705, 1055, 2055, 3165, 6439, 9917, 19317, 28907, 29751, 32195, 49585, 86721, 96585, 144535, 148755, 433605, 1358629, 4075887, 6793145, 20379435]

約数ペア:

[(1, 20379435), (3, 6793145), (5, 4075887), (15, 1358629), (47, 433605), (137, 148755), (141, 144535), (211, 96585), (235, 86721), (411, 49585), (633, 32195), (685, 29751), (705, 28907), (1055, 19317), (2055, 9917), (3165, 6439)]