21000340858

素因数分解:

$2^1\times 7^1\times {\mathrm{1867}}^1\times {\mathrm{803441}}^1$

素因数の和:805317

約数の個数: 16

約数和(自身を含む): 36019911744

約数和(自身を除く): 15019570886

約数列:

[1, 2, 7, 14, 1867, 3734, 13069, 26138, 803441, 1606882, 5624087, 11248174, 1500024347, 3000048694, 10500170429, 21000340858]

約数ペア:

[(1, 21000340858), (2, 10500170429), (7, 3000048694), (14, 1500024347), (1867, 11248174), (3734, 5624087), (13069, 1606882), (26138, 803441)]