19387588

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{977}}^1$

素因数の和:1044

約数の個数: 36

約数和(自身を含む): 38241756

約数和(自身を除く): 18854168

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 121, 164, 242, 451, 484, 902, 977, 1804, 1954, 3908, 4961, 9922, 10747, 19844, 21494, 40057, 42988, 80114, 118217, 160228, 236434, 440627, 472868, 881254, 1762508, 4846897, 9693794, 19387588]

約数ペア:

[(1, 19387588), (2, 9693794), (4, 4846897), (11, 1762508), (22, 881254), (41, 472868), (44, 440627), (82, 236434), (121, 160228), (164, 118217), (242, 80114), (451, 42988), (484, 40057), (902, 21494), (977, 19844), (1804, 10747), (1954, 9922), (3908, 4961)]