21877280

素因数分解:

$2^5\times 5^1\times {\mathrm{136733}}^1$

素因数の和:136748

約数の個数: 24

約数和(自身を含む): 51685452

約数和(自身を除く): 29808172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 136733, 273466, 546932, 683665, 1093864, 1367330, 2187728, 2734660, 4375456, 5469320, 10938640, 21877280]

約数ペア:

[(1, 21877280), (2, 10938640), (4, 5469320), (5, 4375456), (8, 2734660), (10, 2187728), (16, 1367330), (20, 1093864), (32, 683665), (40, 546932), (80, 273466), (160, 136733)]