20558864

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{7883}}^1$

素因数の和:8054

約数の個数: 20

約数和(自身を含む): 40082256

約数和(自身を除く): 19523392

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 7883, 15766, 31532, 63064, 126128, 1284929, 2569858, 5139716, 10279432, 20558864]

約数ペア:

[(1, 20558864), (2, 10279432), (4, 5139716), (8, 2569858), (16, 1284929), (163, 126128), (326, 63064), (652, 31532), (1304, 15766), (2608, 7883)]