1373211

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 2306304

約数和(自身を除く): 933093

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 307, 497, 639, 921, 1491, 2149, 2763, 4473, 6447, 19341, 21797, 65391, 152579, 196173, 457737, 1373211]

約数ペア:

[(1, 1373211), (3, 457737), (7, 196173), (9, 152579), (21, 65391), (63, 21797), (71, 19341), (213, 6447), (307, 4473), (497, 2763), (639, 2149), (921, 1491)]