21278032

素因数分解:

$2^4\times {\mathrm{277}}^1\times {\mathrm{4801}}^1$

素因数の和:5086

約数の個数: 20

約数和(自身を含む): 41383636

約数和(自身を除く): 20105604

約数列:

[1, 2, 4, 8, 16, 277, 554, 1108, 2216, 4432, 4801, 9602, 19204, 38408, 76816, 1329877, 2659754, 5319508, 10639016, 21278032]

約数ペア:

[(1, 21278032), (2, 10639016), (4, 5319508), (8, 2659754), (16, 1329877), (277, 76816), (554, 38408), (1108, 19204), (2216, 9602), (4432, 4801)]