21099218

素因数分解:

$2^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{3433}}^1$

素因数の和:3881

約数の個数: 16

約数和(自身を含む): 36263040

約数和(自身を除く): 15163822

約数列:

[1, 2, 7, 14, 439, 878, 3073, 3433, 6146, 6866, 24031, 48062, 1507087, 3014174, 10549609, 21099218]

約数ペア:

[(1, 21099218), (2, 10549609), (7, 3014174), (14, 1507087), (439, 48062), (878, 24031), (3073, 6866), (3433, 6146)]