13216917

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1913}}^1$

素因数の和:1977

約数の個数: 24

約数和(自身を含む): 20946816

約数和(自身を除く): 7729899

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 1913, 2303, 5739, 6909, 13391, 40173, 89911, 93737, 269733, 281211, 629377, 1888131, 4405639, 13216917]

約数ペア:

[(1, 13216917), (3, 4405639), (7, 1888131), (21, 629377), (47, 281211), (49, 269733), (141, 93737), (147, 89911), (329, 40173), (987, 13391), (1913, 6909), (2303, 5739)]