21690691

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{601}}^1$

素因数の和:822

約数の個数: 16

約数和(自身を含む): 25226208

約数和(自身を除く): 3535517

約数列:

[1, 11, 17, 187, 193, 601, 2123, 3281, 6611, 10217, 36091, 112387, 115993, 1275923, 1971881, 21690691]

約数ペア:

[(1, 21690691), (11, 1971881), (17, 1275923), (187, 115993), (193, 112387), (601, 36091), (2123, 10217), (3281, 6611)]