21702670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197297}}^1$

素因数の和:197315

約数の個数: 16

約数和(自身を含む): 42616368

約数和(自身を除く): 20913698

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197297, 394594, 986485, 1972970, 2170267, 4340534, 10851335, 21702670]

約数ペア:

[(1, 21702670), (2, 10851335), (5, 4340534), (10, 2170267), (11, 1972970), (22, 986485), (55, 394594), (110, 197297)]