20816656

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8081}}^1$

素因数の和:8119

約数の個数: 40

約数和(自身を含む): 48104064

約数和(自身を除く): 27287408

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 8081, 16162, 32324, 56567, 64648, 113134, 129296, 185863, 226268, 371726, 452536, 743452, 905072, 1301041, 1486904, 2602082, 2973808, 5204164, 10408328, 20816656]

約数ペア:

[(1, 20816656), (2, 10408328), (4, 5204164), (7, 2973808), (8, 2602082), (14, 1486904), (16, 1301041), (23, 905072), (28, 743452), (46, 452536), (56, 371726), (92, 226268), (112, 185863), (161, 129296), (184, 113134), (322, 64648), (368, 56567), (644, 32324), (1288, 16162), (2576, 8081)]