20885565

素因数分解:

$3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{9221}}^1$

素因数の和:9380

約数の個数: 16

約数和(自身を含む): 33641856

約数和(自身を除く): 12756291

約数列:

[1, 3, 5, 15, 151, 453, 755, 2265, 9221, 27663, 46105, 138315, 1392371, 4177113, 6961855, 20885565]

約数ペア:

[(1, 20885565), (3, 6961855), (5, 4177113), (15, 1392371), (151, 138315), (453, 46105), (755, 27663), (2265, 9221)]