20675745

素因数分解:

$3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1747}}^1$

素因数の和:2021

約数の個数: 24

約数和(自身を含む): 35994816

約数和(自身を除く): 15319071

約数列:

[1, 3, 5, 9, 15, 45, 263, 789, 1315, 1747, 2367, 3945, 5241, 8735, 11835, 15723, 26205, 78615, 459461, 1378383, 2297305, 4135149, 6891915, 20675745]

約数ペア:

[(1, 20675745), (3, 6891915), (5, 4135149), (9, 2297305), (15, 1378383), (45, 459461), (263, 78615), (789, 26205), (1315, 15723), (1747, 11835), (2367, 8735), (3945, 5241)]