21392872

素因数分解:

$2^3\times {\mathrm{1249}}^1\times {\mathrm{2141}}^1$

素因数の和:3396

約数の個数: 16

約数和(自身を含む): 40162500

約数和(自身を除く): 18769628

約数列:

[1, 2, 4, 8, 1249, 2141, 2498, 4282, 4996, 8564, 9992, 17128, 2674109, 5348218, 10696436, 21392872]

約数ペア:

[(1, 21392872), (2, 10696436), (4, 5348218), (8, 2674109), (1249, 17128), (2141, 9992), (2498, 8564), (4282, 4996)]