20805124518

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{623767}}^1$

素因数の和:623901

約数の個数: 48

約数和(自身を含む): 48167364960

約数和(自身を除く): 27362240442

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 109, 153, 218, 306, 327, 654, 981, 1853, 1962, 3706, 5559, 11118, 16677, 33354, 623767, 1247534, 1871301, 3742602, 5613903, 10604039, 11227806, 21208078, 31812117, 63624234, 67990603, 95436351, 135981206, 190872702, 203971809, 407943618, 611915427, 1155840251, 1223830854, 2311680502, 3467520753, 6935041506, 10402562259, 20805124518]

約数ペア:

[(1, 20805124518), (2, 10402562259), (3, 6935041506), (6, 3467520753), (9, 2311680502), (17, 1223830854), (18, 1155840251), (34, 611915427), (51, 407943618), (102, 203971809), (109, 190872702), (153, 135981206), (218, 95436351), (306, 67990603), (327, 63624234), (654, 31812117), (981, 21208078), (1853, 11227806), (1962, 10604039), (3706, 5613903), (5559, 3742602), (11118, 1871301), (16677, 1247534), (33354, 623767)]