16561377

素因数分解:

$3^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1321}}^1$

素因数の和:1533

約数の個数: 24

約数和(自身を含む): 27497600

約数和(自身を除く): 10936223

約数列:

[1, 3, 7, 9, 21, 63, 199, 597, 1321, 1393, 1791, 3963, 4179, 9247, 11889, 12537, 27741, 83223, 262879, 788637, 1840153, 2365911, 5520459, 16561377]

約数ペア:

[(1, 16561377), (3, 5520459), (7, 2365911), (9, 1840153), (21, 788637), (63, 262879), (199, 83223), (597, 27741), (1321, 12537), (1393, 11889), (1791, 9247), (3963, 4179)]