21115422

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2129}}^1$

素因数の和:2185

約数の個数: 48

約数和(自身を含む): 49842000

約数和(自身を除く): 28726578

約数列:

[1, 2, 3, 6, 9, 18, 19, 29, 38, 57, 58, 87, 114, 171, 174, 261, 342, 522, 551, 1102, 1653, 2129, 3306, 4258, 4959, 6387, 9918, 12774, 19161, 38322, 40451, 61741, 80902, 121353, 123482, 185223, 242706, 364059, 370446, 555669, 728118, 1111338, 1173079, 2346158, 3519237, 7038474, 10557711, 21115422]

約数ペア:

[(1, 21115422), (2, 10557711), (3, 7038474), (6, 3519237), (9, 2346158), (18, 1173079), (19, 1111338), (29, 728118), (38, 555669), (57, 370446), (58, 364059), (87, 242706), (114, 185223), (171, 123482), (174, 121353), (261, 80902), (342, 61741), (522, 40451), (551, 38322), (1102, 19161), (1653, 12774), (2129, 9918), (3306, 6387), (4258, 4959)]