20687534

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1567}}^1$

素因数の和:1640

約数の個数: 32

約数和(自身を含む): 37933056

約数和(自身を除く): 17245522

約数列:

[1, 2, 7, 14, 23, 41, 46, 82, 161, 287, 322, 574, 943, 1567, 1886, 3134, 6601, 10969, 13202, 21938, 36041, 64247, 72082, 128494, 252287, 449729, 504574, 899458, 1477681, 2955362, 10343767, 20687534]

約数ペア:

[(1, 20687534), (2, 10343767), (7, 2955362), (14, 1477681), (23, 899458), (41, 504574), (46, 449729), (82, 252287), (161, 128494), (287, 72082), (322, 64247), (574, 36041), (943, 21938), (1567, 13202), (1886, 10969), (3134, 6601)]