21186471

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{5851}}^1$

素因数の和:5942

約数の個数: 16

約数和(自身を含む): 30336768

約数和(自身を除く): 9150297

約数列:

[1, 3, 17, 51, 71, 213, 1207, 3621, 5851, 17553, 99467, 298401, 415421, 1246263, 7062157, 21186471]

約数ペア:

[(1, 21186471), (3, 7062157), (17, 1246263), (51, 415421), (71, 298401), (213, 99467), (1207, 17553), (3621, 5851)]