21495285

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{68239}}^1$

素因数の和:68257

約数の個数: 24

約数和(自身を含む): 42581760

約数和(自身を除く): 21086475

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 68239, 204717, 341195, 477673, 614151, 1023585, 1433019, 2388365, 3070755, 4299057, 7165095, 21495285]

約数ペア:

[(1, 21495285), (3, 7165095), (5, 4299057), (7, 3070755), (9, 2388365), (15, 1433019), (21, 1023585), (35, 614151), (45, 477673), (63, 341195), (105, 204717), (315, 68239)]