20653816

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{112249}}^1$

素因数の和:112278

約数の個数: 16

約数和(自身を含む): 40410000

約数和(自身を除く): 19756184

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 112249, 224498, 448996, 897992, 2581727, 5163454, 10326908, 20653816]

約数ペア:

[(1, 20653816), (2, 10326908), (4, 5163454), (8, 2581727), (23, 897992), (46, 448996), (92, 224498), (184, 112249)]