21710810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197371}}^1$

素因数の和:197389

約数の個数: 16

約数和(自身を含む): 42632352

約数和(自身を除く): 20921542

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197371, 394742, 986855, 1973710, 2171081, 4342162, 10855405, 21710810]

約数ペア:

[(1, 21710810), (2, 10855405), (5, 4342162), (10, 2171081), (11, 1973710), (22, 986855), (55, 394742), (110, 197371)]