20995168

素因数分解:

$2^5\times {\mathrm{809}}^1\times {\mathrm{811}}^1$

素因数の和:1630

約数の個数: 24

約数和(自身を含む): 41436360

約数和(自身を除く): 20441192

約数列:

[1, 2, 4, 8, 16, 32, 809, 811, 1618, 1622, 3236, 3244, 6472, 6488, 12944, 12976, 25888, 25952, 656099, 1312198, 2624396, 5248792, 10497584, 20995168]

約数ペア:

[(1, 20995168), (2, 10497584), (4, 5248792), (8, 2624396), (16, 1312198), (32, 656099), (809, 25952), (811, 25888), (1618, 12976), (1622, 12944), (3236, 6488), (3244, 6472)]