19856589

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1\times {\mathrm{443}}^1$

素因数の和:736

約数の個数: 16

約数和(自身を含む): 27052032

約数和(自身を除く): 7195443

約数列:

[1, 3, 67, 201, 223, 443, 669, 1329, 14941, 29681, 44823, 89043, 98789, 296367, 6618863, 19856589]

約数ペア:

[(1, 19856589), (3, 6618863), (67, 296367), (201, 98789), (223, 89043), (443, 44823), (669, 29681), (1329, 14941)]