221520410

素因数分解:

$2^1\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{21739}}^1$

素因数の和:22765

約数の個数: 16

約数和(自身を含む): 399146400

約数和(自身を除く): 177625990

約数列:

[1, 2, 5, 10, 1019, 2038, 5095, 10190, 21739, 43478, 108695, 217390, 22152041, 44304082, 110760205, 221520410]

約数ペア:

[(1, 221520410), (2, 110760205), (5, 44304082), (10, 22152041), (1019, 217390), (2038, 108695), (5095, 43478), (10190, 21739)]