31271457

素因数分解:

$3^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{1069}}^1$

素因数の和:1285

約数の個数: 24

約数和(自身を含む): 48792000

約数和(自身を除く): 17520543

約数列:

[1, 3, 7, 21, 49, 147, 199, 597, 1069, 1393, 3207, 4179, 7483, 9751, 22449, 29253, 52381, 157143, 212731, 638193, 1489117, 4467351, 10423819, 31271457]

約数ペア:

[(1, 31271457), (3, 10423819), (7, 4467351), (21, 1489117), (49, 638193), (147, 212731), (199, 157143), (597, 52381), (1069, 29253), (1393, 22449), (3207, 9751), (4179, 7483)]