20529215

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{30871}}^1$

素因数の和:30902

約数の個数: 16

約数和(自身を含む): 29637120

約数和(自身を除く): 9107905

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 30871, 154355, 216097, 586549, 1080485, 2932745, 4105843, 20529215]

約数ペア:

[(1, 20529215), (5, 4105843), (7, 2932745), (19, 1080485), (35, 586549), (95, 216097), (133, 154355), (665, 30871)]