16726591

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 24

約数和(自身を含む): 20520000

約数和(自身を除く): 3793409

約数列:

[1, 7, 29, 49, 79, 149, 203, 553, 1043, 1421, 2291, 3871, 4321, 7301, 11771, 16037, 30247, 82397, 112259, 211729, 341359, 576779, 2389513, 16726591]

約数ペア:

[(1, 16726591), (7, 2389513), (29, 576779), (49, 341359), (79, 211729), (149, 112259), (203, 82397), (553, 30247), (1043, 16037), (1421, 11771), (2291, 7301), (3871, 4321)]