20571817

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{467}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 25608960

約数和(自身を除く): 5037143

約数列:

[1, 7, 29, 31, 49, 203, 217, 467, 899, 1421, 1519, 3269, 6293, 13543, 14477, 22883, 44051, 94801, 101339, 419833, 663607, 709373, 2938831, 20571817]

約数ペア:

[(1, 20571817), (7, 2938831), (29, 709373), (31, 663607), (49, 419833), (203, 101339), (217, 94801), (467, 44051), (899, 22883), (1421, 14477), (1519, 13543), (3269, 6293)]