21161384

素因数分解:

$2^3\times {\mathrm{1451}}^1\times {\mathrm{1823}}^1$

素因数の和:3280

約数の個数: 16

約数和(自身を含む): 39726720

約数和(自身を除く): 18565336

約数列:

[1, 2, 4, 8, 1451, 1823, 2902, 3646, 5804, 7292, 11608, 14584, 2645173, 5290346, 10580692, 21161384]

約数ペア:

[(1, 21161384), (2, 10580692), (4, 5290346), (8, 2645173), (1451, 14584), (1823, 11608), (2902, 7292), (3646, 5804)]