21707565

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131561}}^1$

素因数の和:131580

約数の個数: 16

約数和(自身を含む): 37889856

約数和(自身を除く): 16182291

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 131561, 394683, 657805, 1447171, 1973415, 4341513, 7235855, 21707565]

約数ペア:

[(1, 21707565), (3, 7235855), (5, 4341513), (11, 1973415), (15, 1447171), (33, 657805), (55, 394683), (165, 131561)]