21772988

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{1609}}^1$

素因数の和:1829

約数の個数: 24

約数和(自身を含む): 40572000

約数和(自身を除く): 18799012

約数列:

[1, 2, 4, 17, 34, 68, 199, 398, 796, 1609, 3218, 3383, 6436, 6766, 13532, 27353, 54706, 109412, 320191, 640382, 1280764, 5443247, 10886494, 21772988]

約数ペア:

[(1, 21772988), (2, 10886494), (4, 5443247), (17, 1280764), (34, 640382), (68, 320191), (199, 109412), (398, 54706), (796, 27353), (1609, 13532), (3218, 6766), (3383, 6436)]