16716987

素因数分解:

$3^2\times 7^2\times {\mathrm{37907}}^1$

素因数の和:37927

約数の個数: 18

約数和(自身を含む): 28089828

約数和(自身を除く): 11372841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 37907, 113721, 265349, 341163, 796047, 1857443, 2388141, 5572329, 16716987]

約数ペア:

[(1, 16716987), (3, 5572329), (7, 2388141), (9, 1857443), (21, 796047), (49, 341163), (63, 265349), (147, 113721), (441, 37907)]