20981553

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{11119}}^1$

素因数の和:11176

約数の個数: 16

約数和(自身を含む): 30424320

約数和(自身を除く): 9442767

約数列:

[1, 3, 17, 37, 51, 111, 629, 1887, 11119, 33357, 189023, 411403, 567069, 1234209, 6993851, 20981553]

約数ペア:

[(1, 20981553), (3, 6993851), (17, 1234209), (37, 567069), (51, 411403), (111, 189023), (629, 33357), (1887, 11119)]