1388890143

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{719}}^1\times {\mathrm{3023}}^1$

素因数の和:3819

約数の個数: 24

約数和(自身を含む): 2037934080

約数和(自身を除く): 649043937

約数列:

[1, 3, 9, 71, 213, 639, 719, 2157, 3023, 6471, 9069, 27207, 51049, 153147, 214633, 459441, 643899, 1931697, 2173537, 6520611, 19561833, 154321127, 462963381, 1388890143]

約数ペア:

[(1, 1388890143), (3, 462963381), (9, 154321127), (71, 19561833), (213, 6520611), (639, 2173537), (719, 1931697), (2157, 643899), (3023, 459441), (6471, 214633), (9069, 153147), (27207, 51049)]