20781252

素因数分解:

$2^2\times 3^3\times {\mathrm{317}}^1\times {\mathrm{607}}^1$

素因数の和:937

約数の個数: 48

約数和(自身を含む): 54136320

約数和(自身を除く): 33355068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 317, 607, 634, 951, 1214, 1268, 1821, 1902, 2428, 2853, 3642, 3804, 5463, 5706, 7284, 8559, 10926, 11412, 16389, 17118, 21852, 32778, 34236, 65556, 192419, 384838, 577257, 769676, 1154514, 1731771, 2309028, 3463542, 5195313, 6927084, 10390626, 20781252]

約数ペア:

[(1, 20781252), (2, 10390626), (3, 6927084), (4, 5195313), (6, 3463542), (9, 2309028), (12, 1731771), (18, 1154514), (27, 769676), (36, 577257), (54, 384838), (108, 192419), (317, 65556), (607, 34236), (634, 32778), (951, 21852), (1214, 17118), (1268, 16389), (1821, 11412), (1902, 10926), (2428, 8559), (2853, 7284), (3642, 5706), (3804, 5463)]