21000940215

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{809}}^1\times {\mathrm{32653}}^1$

素因数の和:33523

約数の個数: 32

約数和(自身を含む): 34278863040

約数和(自身を除く): 13277922825

約数列:

[1, 3, 5, 15, 53, 159, 265, 795, 809, 2427, 4045, 12135, 32653, 42877, 97959, 128631, 163265, 214385, 489795, 643155, 1730609, 5191827, 8653045, 25959135, 26416277, 79248831, 132081385, 396244155, 1400062681, 4200188043, 7000313405, 21000940215]

約数ペア:

[(1, 21000940215), (3, 7000313405), (5, 4200188043), (15, 1400062681), (53, 396244155), (159, 132081385), (265, 79248831), (795, 26416277), (809, 25959135), (2427, 8653045), (4045, 5191827), (12135, 1730609), (32653, 643155), (42877, 489795), (97959, 214385), (128631, 163265)]