20821676

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{269}}^1\times {\mathrm{523}}^1$

素因数の和:833

約数の個数: 24

約数和(自身を含む): 37633680

約数和(自身を除く): 16812004

約数列:

[1, 2, 4, 37, 74, 148, 269, 523, 538, 1046, 1076, 2092, 9953, 19351, 19906, 38702, 39812, 77404, 140687, 281374, 562748, 5205419, 10410838, 20821676]

約数ペア:

[(1, 20821676), (2, 10410838), (4, 5205419), (37, 562748), (74, 281374), (148, 140687), (269, 77404), (523, 39812), (538, 38702), (1046, 19906), (1076, 19351), (2092, 9953)]