1987785

素因数分解:

$3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 3479424

約数和(自身を除く): 1491639

約数列:

[1, 3, 5, 9, 15, 45, 163, 271, 489, 813, 815, 1355, 1467, 2439, 2445, 4065, 7335, 12195, 44173, 132519, 220865, 397557, 662595, 1987785]

約数ペア:

[(1, 1987785), (3, 662595), (5, 397557), (9, 220865), (15, 132519), (45, 44173), (163, 12195), (271, 7335), (489, 4065), (813, 2445), (815, 2439), (1355, 1467)]