20871885

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{37607}}^1$

素因数の和:37652

約数の個数: 16

約数和(自身を含む): 34298496

約数和(自身を除く): 13426611

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 37607, 112821, 188035, 564105, 1391459, 4174377, 6957295, 20871885]

約数ペア:

[(1, 20871885), (3, 6957295), (5, 4174377), (15, 1391459), (37, 564105), (111, 188035), (185, 112821), (555, 37607)]