21753490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197759}}^1$

素因数の和:197777

約数の個数: 16

約数和(自身を含む): 42716160

約数和(自身を除く): 20962670

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197759, 395518, 988795, 1977590, 2175349, 4350698, 10876745, 21753490]

約数ペア:

[(1, 21753490), (2, 10876745), (5, 4350698), (10, 2175349), (11, 1977590), (22, 988795), (55, 395518), (110, 197759)]