20872095

素因数分解:

$3^1\times 5^1\times {\mathrm{337}}^1\times {\mathrm{4129}}^1$

素因数の和:4474

約数の個数: 16

約数和(自身を含む): 33502560

約数和(自身を除く): 12630465

約数列:

[1, 3, 5, 15, 337, 1011, 1685, 4129, 5055, 12387, 20645, 61935, 1391473, 4174419, 6957365, 20872095]

約数ペア:

[(1, 20872095), (3, 6957365), (5, 4174419), (15, 1391473), (337, 61935), (1011, 20645), (1685, 12387), (4129, 5055)]