19728415

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{467}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 29113344

約数和(自身を除く): 9384929

約数列:

[1, 5, 7, 17, 35, 71, 85, 119, 355, 467, 497, 595, 1207, 2335, 2485, 3269, 6035, 7939, 8449, 16345, 33157, 39695, 42245, 55573, 165785, 232099, 277865, 563669, 1160495, 2818345, 3945683, 19728415]

約数ペア:

[(1, 19728415), (5, 3945683), (7, 2818345), (17, 1160495), (35, 563669), (71, 277865), (85, 232099), (119, 165785), (355, 55573), (467, 42245), (497, 39695), (595, 33157), (1207, 16345), (2335, 8449), (2485, 7939), (3269, 6035)]