21690717290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197188339}}^1$

素因数の和:197188357

約数の個数: 16

約数和(自身を含む): 42592681440

約数和(自身を除く): 20901964150

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197188339, 394376678, 985941695, 1971883390, 2169071729, 4338143458, 10845358645, 21690717290]

約数ペア:

[(1, 21690717290), (2, 10845358645), (5, 4338143458), (10, 2169071729), (11, 1971883390), (22, 985941695), (55, 394376678), (110, 197188339)]