21895258

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1069}}^1$

素因数の和:1115

約数の個数: 48

約数和(自身を含む): 43912800

約数和(自身を除く): 22017542

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 49, 77, 98, 133, 154, 209, 266, 418, 539, 931, 1069, 1078, 1463, 1862, 2138, 2926, 7483, 10241, 11759, 14966, 20311, 20482, 23518, 40622, 52381, 82313, 104762, 142177, 164626, 223421, 284354, 446842, 576191, 995239, 1152382, 1563947, 1990478, 3127894, 10947629, 21895258]

約数ペア:

[(1, 21895258), (2, 10947629), (7, 3127894), (11, 1990478), (14, 1563947), (19, 1152382), (22, 995239), (38, 576191), (49, 446842), (77, 284354), (98, 223421), (133, 164626), (154, 142177), (209, 104762), (266, 82313), (418, 52381), (539, 40622), (931, 23518), (1069, 20482), (1078, 20311), (1463, 14966), (1862, 11759), (2138, 10241), (2926, 7483)]