21969664

素因数分解:

$2^8\times {\mathrm{85819}}^1$

素因数の和:85835

約数の個数: 18

約数和(自身を含む): 43854020

約数和(自身を除く): 21884356

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 85819, 171638, 343276, 686552, 1373104, 2746208, 5492416, 10984832, 21969664]

約数ペア:

[(1, 21969664), (2, 10984832), (4, 5492416), (8, 2746208), (16, 1373104), (32, 686552), (64, 343276), (128, 171638), (256, 85819)]