1991556

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{1129}}^1$

素因数の和:1153

約数の個数: 54

約数和(自身を含む): 5861310

約数和(自身を除く): 3869754

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1129, 1764, 2258, 3387, 4516, 6774, 7903, 10161, 13548, 15806, 20322, 23709, 31612, 40644, 47418, 55321, 71127, 94836, 110642, 142254, 165963, 221284, 284508, 331926, 497889, 663852, 995778, 1991556]

約数ペア:

[(1, 1991556), (2, 995778), (3, 663852), (4, 497889), (6, 331926), (7, 284508), (9, 221284), (12, 165963), (14, 142254), (18, 110642), (21, 94836), (28, 71127), (36, 55321), (42, 47418), (49, 40644), (63, 31612), (84, 23709), (98, 20322), (126, 15806), (147, 13548), (196, 10161), (252, 7903), (294, 6774), (441, 4516), (588, 3387), (882, 2258), (1129, 1764)]