2179540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9907}}^1$

素因数の和:9927

約数の個数: 24

約数和(自身を含む): 4993632

約数和(自身を除く): 2814092

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 9907, 19814, 39628, 49535, 99070, 108977, 198140, 217954, 435908, 544885, 1089770, 2179540]

約数ペア:

[(1, 2179540), (2, 1089770), (4, 544885), (5, 435908), (10, 217954), (11, 198140), (20, 108977), (22, 99070), (44, 49535), (55, 39628), (110, 19814), (220, 9907)]