19685127

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 33775616

約数和(自身を除く): 14090489

約数列:

[1, 3, 7, 11, 21, 33, 61, 77, 121, 127, 183, 231, 363, 381, 427, 671, 847, 889, 1281, 1397, 2013, 2541, 2667, 4191, 4697, 7381, 7747, 9779, 14091, 15367, 22143, 23241, 29337, 46101, 51667, 54229, 85217, 107569, 155001, 162687, 255651, 322707, 596519, 937387, 1789557, 2812161, 6561709, 19685127]

約数ペア:

[(1, 19685127), (3, 6561709), (7, 2812161), (11, 1789557), (21, 937387), (33, 596519), (61, 322707), (77, 255651), (121, 162687), (127, 155001), (183, 107569), (231, 85217), (363, 54229), (381, 51667), (427, 46101), (671, 29337), (847, 23241), (889, 22143), (1281, 15367), (1397, 14091), (2013, 9779), (2541, 7747), (2667, 7381), (4191, 4697)]