27912017

素因数分解:

$7^2\times {\mathrm{71}}^2\times {\mathrm{113}}^1$

素因数の和:269

約数の個数: 18

約数和(自身を含む): 33224274

約数和(自身を除く): 5312257

約数列:

[1, 7, 49, 71, 113, 497, 791, 3479, 5041, 5537, 8023, 35287, 56161, 247009, 393127, 569633, 3987431, 27912017]

約数ペア:

[(1, 27912017), (7, 3987431), (49, 569633), (71, 393127), (113, 247009), (497, 56161), (791, 35287), (3479, 8023), (5041, 5537)]