21428676

素因数分解:

$2^2\times 3^2\times {\mathrm{107}}^1\times {\mathrm{5563}}^1$

素因数の和:5680

約数の個数: 36

約数和(自身を含む): 54682992

約数和(自身を除く): 33254316

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 107, 214, 321, 428, 642, 963, 1284, 1926, 3852, 5563, 11126, 16689, 22252, 33378, 50067, 66756, 100134, 200268, 595241, 1190482, 1785723, 2380964, 3571446, 5357169, 7142892, 10714338, 21428676]

約数ペア:

[(1, 21428676), (2, 10714338), (3, 7142892), (4, 5357169), (6, 3571446), (9, 2380964), (12, 1785723), (18, 1190482), (36, 595241), (107, 200268), (214, 100134), (321, 66756), (428, 50067), (642, 33378), (963, 22252), (1284, 16689), (1926, 11126), (3852, 5563)]