13680513

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1039}}^1$

素因数の和:1082

約数の個数: 48

約数和(自身を含む): 25958400

約数和(自身を除く): 12277887

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 231, 399, 627, 693, 1039, 1197, 1463, 1881, 3117, 4389, 7273, 9351, 11429, 13167, 19741, 21819, 34287, 59223, 65457, 80003, 102861, 138187, 177669, 217151, 240009, 414561, 651453, 720027, 1243683, 1520057, 1954359, 4560171, 13680513]

約数ペア:

[(1, 13680513), (3, 4560171), (7, 1954359), (9, 1520057), (11, 1243683), (19, 720027), (21, 651453), (33, 414561), (57, 240009), (63, 217151), (77, 177669), (99, 138187), (133, 102861), (171, 80003), (209, 65457), (231, 59223), (399, 34287), (627, 21819), (693, 19741), (1039, 13167), (1197, 11429), (1463, 9351), (1881, 7273), (3117, 4389)]