21541730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{701}}^1$

素因数の和:1154

約数の個数: 32

約数和(自身を含む): 44478720

約数和(自身を除く): 22936990

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 439, 701, 878, 1402, 2195, 3073, 3505, 4390, 4907, 6146, 7010, 9814, 15365, 24535, 30730, 49070, 307739, 615478, 1538695, 2154173, 3077390, 4308346, 10770865, 21541730]

約数ペア:

[(1, 21541730), (2, 10770865), (5, 4308346), (7, 3077390), (10, 2154173), (14, 1538695), (35, 615478), (70, 307739), (439, 49070), (701, 30730), (878, 24535), (1402, 15365), (2195, 9814), (3073, 7010), (3505, 6146), (4390, 4907)]