20680436

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{38873}}^1$

素因数の和:38903

約数の個数: 24

約数和(自身を含む): 43538880

約数和(自身を除く): 22858444

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 38873, 77746, 155492, 272111, 544222, 738587, 1088444, 1477174, 2954348, 5170109, 10340218, 20680436]

約数ペア:

[(1, 20680436), (2, 10340218), (4, 5170109), (7, 2954348), (14, 1477174), (19, 1088444), (28, 738587), (38, 544222), (76, 272111), (133, 155492), (266, 77746), (532, 38873)]