20279567

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{2557}}^1$

素因数の和:2678

約数の個数: 16

約数和(自身を含む): 25539072

約数和(自身を除く): 5259505

約数列:

[1, 7, 11, 77, 103, 721, 1133, 2557, 7931, 17899, 28127, 196889, 263371, 1843597, 2897081, 20279567]

約数ペア:

[(1, 20279567), (7, 2897081), (11, 1843597), (77, 263371), (103, 196889), (721, 28127), (1133, 17899), (2557, 7931)]