2157903

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:395

約数の個数: 24

約数和(自身を含む): 3459456

約数和(自身を除く): 1301553

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 307, 639, 781, 921, 2343, 2763, 3377, 7029, 10131, 21797, 30393, 65391, 196173, 239767, 719301, 2157903]

約数ペア:

[(1, 2157903), (3, 719301), (9, 239767), (11, 196173), (33, 65391), (71, 30393), (99, 21797), (213, 10131), (307, 7029), (639, 3377), (781, 2763), (921, 2343)]