19899728

素因数分解:

$2^4\times {\mathrm{227}}^1\times {\mathrm{5479}}^1$

素因数の和:5714

約数の個数: 20

約数和(自身を含む): 38732640

約数和(自身を除く): 18832912

約数列:

[1, 2, 4, 8, 16, 227, 454, 908, 1816, 3632, 5479, 10958, 21916, 43832, 87664, 1243733, 2487466, 4974932, 9949864, 19899728]

約数ペア:

[(1, 19899728), (2, 9949864), (4, 4974932), (8, 2487466), (16, 1243733), (227, 87664), (454, 43832), (908, 21916), (1816, 10958), (3632, 5479)]