21710085

素因数分解:

$3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{2237}}^1$

素因数の和:2892

約数の個数: 16

約数和(自身を含む): 34805376

約数和(自身を除く): 13095291

約数列:

[1, 3, 5, 15, 647, 1941, 2237, 3235, 6711, 9705, 11185, 33555, 1447339, 4342017, 7236695, 21710085]

約数ペア:

[(1, 21710085), (3, 7236695), (5, 4342017), (15, 1447339), (647, 33555), (1941, 11185), (2237, 9705), (3235, 6711)]