20722828

素因数分解:

$2^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{2731}}^1$

素因数の和:3013

約数の個数: 24

約数和(自身を含む): 41613824

約数和(自身を除く): 20890996

約数列:

[1, 2, 4, 7, 14, 28, 271, 542, 1084, 1897, 2731, 3794, 5462, 7588, 10924, 19117, 38234, 76468, 740101, 1480202, 2960404, 5180707, 10361414, 20722828]

約数ペア:

[(1, 20722828), (2, 10361414), (4, 5180707), (7, 2960404), (14, 1480202), (28, 740101), (271, 76468), (542, 38234), (1084, 19117), (1897, 10924), (2731, 7588), (3794, 5462)]