21132419

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{2161}}^1$

素因数の和:2306

約数の個数: 16

約数和(自身を含む): 26566656

約数和(自身を除く): 5434237

約数列:

[1, 7, 11, 77, 127, 889, 1397, 2161, 9779, 15127, 23771, 166397, 274447, 1921129, 3018917, 21132419]

約数ペア:

[(1, 21132419), (7, 3018917), (11, 1921129), (77, 274447), (127, 166397), (889, 23771), (1397, 15127), (2161, 9779)]