21716530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197423}}^1$

素因数の和:197441

約数の個数: 16

約数和(自身を含む): 42643584

約数和(自身を除く): 20927054

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197423, 394846, 987115, 1974230, 2171653, 4343306, 10858265, 21716530]

約数ペア:

[(1, 21716530), (2, 10858265), (5, 4343306), (10, 2171653), (11, 1974230), (22, 987115), (55, 394846), (110, 197423)]