13147981

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{43}}^1$

素因数の和:110

約数の個数: 36

約数和(自身を含む): 17836896

約数和(自身を除く): 4688915

約数列:

[1, 7, 11, 19, 43, 77, 121, 133, 209, 301, 361, 473, 817, 847, 1463, 2299, 2527, 3311, 3971, 5203, 5719, 8987, 15523, 16093, 27797, 36421, 43681, 62909, 98857, 108661, 170753, 305767, 691999, 1195271, 1878283, 13147981]

約数ペア:

[(1, 13147981), (7, 1878283), (11, 1195271), (19, 691999), (43, 305767), (77, 170753), (121, 108661), (133, 98857), (209, 62909), (301, 43681), (361, 36421), (473, 27797), (817, 16093), (847, 15523), (1463, 8987), (2299, 5719), (2527, 5203), (3311, 3971)]